Merge changes from topic "mp2_ndk"

* changes:
  MediaPlayer2: replace IPCThreadState with libbinder_ndk.
  Completely remove Metadata from MediaPlayer2.
diff --git a/media/libmediaplayer2/Android.bp b/media/libmediaplayer2/Android.bp
index 54309ee..38f42dc 100644
--- a/media/libmediaplayer2/Android.bp
+++ b/media/libmediaplayer2/Android.bp
@@ -16,6 +16,7 @@
         "libandroid_runtime",
         "libaudioclient",
         "libbinder",
+        "libbinder_ndk",
         "libcutils",
         "libgui",
         "liblog",
diff --git a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
index 5e98589..0c8d016 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
@@ -30,7 +30,6 @@
 #include <media/AudioSystem.h>
 #include <media/AudioTimestamp.h>
 #include <media/BufferingSettings.h>
-#include <media/Metadata.h>
 #include <media/stagefright/foundation/AHandler.h>
 #include <mediaplayer2/MediaPlayer2Types.h>
 
@@ -224,18 +223,6 @@
     // @return OK if the call was successful.
     virtual status_t invoke(const PlayerMessage &request, PlayerMessage *reply) = 0;
 
-    // The Client in the MetadataPlayerService calls this method on
-    // the native player to retrieve all or a subset of metadata.
-    //
-    // @param ids SortedList of metadata ID to be fetch. If empty, all
-    //            the known metadata should be returned.
-    // @param[inout] records Parcel where the player appends its metadata.
-    // @return OK if the call was successful.
-    virtual status_t getMetadata(const media::Metadata::Filter& /* ids */,
-                                 Parcel* /* records */) {
-        return INVALID_OPERATION;
-    };
-
     void setListener(const sp<MediaPlayer2InterfaceListener> &listener) {
         Mutex::Autolock autoLock(mListenerLock);
         mListener = listener;
diff --git a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
index a945ffd..b8d034b 100644
--- a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
+++ b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
@@ -20,7 +20,6 @@
 #include <media/AVSyncSettings.h>
 #include <media/AudioResamplerPublic.h>
 #include <media/BufferingSettings.h>
-#include <media/Metadata.h>
 #include <media/mediaplayer_common.h>
 #include <mediaplayer2/MediaPlayer2Interface.h>
 #include <mediaplayer2/MediaPlayer2Types.h>
diff --git a/media/libmediaplayer2/mediaplayer2.cpp b/media/libmediaplayer2/mediaplayer2.cpp
index f432059..e088a01 100644
--- a/media/libmediaplayer2/mediaplayer2.cpp
+++ b/media/libmediaplayer2/mediaplayer2.cpp
@@ -18,14 +18,11 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "MediaPlayer2Native"
 
-#include <binder/IServiceManager.h>
-#include <binder/IPCThreadState.h>
-
+#include <android/binder_ibinder.h>
 #include <media/AudioSystem.h>
 #include <media/DataSourceDesc.h>
 #include <media/MediaAnalyticsItem.h>
 #include <media/MemoryLeakTrackUtil.h>
-#include <media/Metadata.h>
 #include <media/NdkWrapper.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooperRoster.h>
@@ -103,114 +100,110 @@
     String8 result;
     SortedVector< sp<MediaPlayer2> > players; //to serialise the mutex unlock & client destruction.
 
-    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
-        snprintf(buffer, SIZE, "Permission Denial: can't dump MediaPlayer2\n");
-        result.append(buffer);
+    {
+        Mutex::Autolock lock(sRecordLock);
+        ensureInit_l();
+        for (int i = 0, n = sPlayers->size(); i < n; ++i) {
+            sp<MediaPlayer2> p = (*sPlayers)[i].promote();
+            if (p != 0) {
+                p->dump(fd, args);
+            }
+            players.add(p);
+        }
+    }
+
+    result.append(" Files opened and/or mapped:\n");
+    snprintf(buffer, SIZE, "/proc/%d/maps", getpid());
+    FILE *f = fopen(buffer, "r");
+    if (f) {
+        while (!feof(f)) {
+            fgets(buffer, SIZE, f);
+            if (strstr(buffer, " /storage/") ||
+                strstr(buffer, " /system/sounds/") ||
+                strstr(buffer, " /data/") ||
+                strstr(buffer, " /system/media/")) {
+                result.append("  ");
+                result.append(buffer);
+            }
+        }
+        fclose(f);
     } else {
-        {
-            Mutex::Autolock lock(sRecordLock);
-            ensureInit_l();
-            for (int i = 0, n = sPlayers->size(); i < n; ++i) {
-                sp<MediaPlayer2> p = (*sPlayers)[i].promote();
-                if (p != 0) {
-                    p->dump(fd, args);
-                }
-                players.add(p);
-            }
-        }
+        result.append("couldn't open ");
+        result.append(buffer);
+        result.append("\n");
+    }
 
-        result.append(" Files opened and/or mapped:\n");
-        snprintf(buffer, SIZE, "/proc/%d/maps", getpid());
-        FILE *f = fopen(buffer, "r");
-        if (f) {
-            while (!feof(f)) {
-                fgets(buffer, SIZE, f);
-                if (strstr(buffer, " /storage/") ||
-                    strstr(buffer, " /system/sounds/") ||
-                    strstr(buffer, " /data/") ||
-                    strstr(buffer, " /system/media/")) {
-                    result.append("  ");
-                    result.append(buffer);
-                }
-            }
-            fclose(f);
-        } else {
-            result.append("couldn't open ");
-            result.append(buffer);
-            result.append("\n");
-        }
-
-        snprintf(buffer, SIZE, "/proc/%d/fd", getpid());
-        DIR *d = opendir(buffer);
-        if (d) {
-            struct dirent *ent;
-            while((ent = readdir(d)) != NULL) {
-                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
-                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name);
-                    struct stat s;
-                    if (lstat(buffer, &s) == 0) {
-                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
-                            char linkto[256];
-                            int len = readlink(buffer, linkto, sizeof(linkto));
-                            if(len > 0) {
-                                if(len > 255) {
-                                    linkto[252] = '.';
-                                    linkto[253] = '.';
-                                    linkto[254] = '.';
-                                    linkto[255] = 0;
-                                } else {
-                                    linkto[len] = 0;
-                                }
-                                if (strstr(linkto, "/storage/") == linkto ||
-                                    strstr(linkto, "/system/sounds/") == linkto ||
-                                    strstr(linkto, "/data/") == linkto ||
-                                    strstr(linkto, "/system/media/") == linkto) {
-                                    result.append("  ");
-                                    result.append(buffer);
-                                    result.append(" -> ");
-                                    result.append(linkto);
-                                    result.append("\n");
-                                }
+    snprintf(buffer, SIZE, "/proc/%d/fd", getpid());
+    DIR *d = opendir(buffer);
+    if (d) {
+        struct dirent *ent;
+        while((ent = readdir(d)) != NULL) {
+            if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
+                snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name);
+                struct stat s;
+                if (lstat(buffer, &s) == 0) {
+                    if ((s.st_mode & S_IFMT) == S_IFLNK) {
+                        char linkto[256];
+                        int len = readlink(buffer, linkto, sizeof(linkto));
+                        if(len > 0) {
+                            if(len > 255) {
+                                linkto[252] = '.';
+                                linkto[253] = '.';
+                                linkto[254] = '.';
+                                linkto[255] = 0;
+                            } else {
+                                linkto[len] = 0;
                             }
-                        } else {
-                            result.append("  unexpected type for ");
-                            result.append(buffer);
-                            result.append("\n");
+                            if (strstr(linkto, "/storage/") == linkto ||
+                                strstr(linkto, "/system/sounds/") == linkto ||
+                                strstr(linkto, "/data/") == linkto ||
+                                strstr(linkto, "/system/media/") == linkto) {
+                                result.append("  ");
+                                result.append(buffer);
+                                result.append(" -> ");
+                                result.append(linkto);
+                                result.append("\n");
+                            }
                         }
+                    } else {
+                        result.append("  unexpected type for ");
+                        result.append(buffer);
+                        result.append("\n");
                     }
                 }
             }
-            closedir(d);
-        } else {
-            result.append("couldn't open ");
-            result.append(buffer);
-            result.append("\n");
         }
+        closedir(d);
+    } else {
+        result.append("couldn't open ");
+        result.append(buffer);
+        result.append("\n");
+    }
 
-        gLooperRoster.dump(fd, args);
+    gLooperRoster.dump(fd, args);
 
-        bool dumpMem = false;
-        bool unreachableMemory = false;
-        for (size_t i = 0; i < args.size(); i++) {
-            if (args[i] == String16("-m")) {
-                dumpMem = true;
-            } else if (args[i] == String16("--unreachable")) {
-                unreachableMemory = true;
-            }
-        }
-        if (dumpMem) {
-            result.append("\nDumping memory:\n");
-            std::string s = dumpMemoryAddresses(100 /* limit */);
-            result.append(s.c_str(), s.size());
-        }
-        if (unreachableMemory) {
-            result.append("\nDumping unreachable memory:\n");
-            // TODO - should limit be an argument parameter?
-            // TODO: enable GetUnreachableMemoryString if it's part of stable API
-            //std::string s = GetUnreachableMemoryString(true /* contents */, 10000 /* limit */);
-            //result.append(s.c_str(), s.size());
+    bool dumpMem = false;
+    bool unreachableMemory = false;
+    for (size_t i = 0; i < args.size(); i++) {
+        if (args[i] == String16("-m")) {
+            dumpMem = true;
+        } else if (args[i] == String16("--unreachable")) {
+            unreachableMemory = true;
         }
     }
+    if (dumpMem) {
+        result.append("\nDumping memory:\n");
+        std::string s = dumpMemoryAddresses(100 /* limit */);
+        result.append(s.c_str(), s.size());
+    }
+    if (unreachableMemory) {
+        result.append("\nDumping unreachable memory:\n");
+        // TODO - should limit be an argument parameter?
+        // TODO: enable GetUnreachableMemoryString if it's part of stable API
+        //std::string s = GetUnreachableMemoryString(true /* contents */, 10000 /* limit */);
+        //result.append(s.c_str(), s.size());
+    }
+
     write(fd, result.string(), result.size());
     return NO_ERROR;
 }
@@ -253,9 +246,8 @@
     mVideoWidth = mVideoHeight = 0;
     mSendLevel = 0;
 
-    // TODO: get pid and uid from JAVA
-    mPid = IPCThreadState::self()->getCallingPid();
-    mUid = IPCThreadState::self()->getCallingUid();
+    mPid = AIBinder_getCallingPid();
+    mUid = AIBinder_getCallingUid();
 
     mAudioOutput = new MediaPlayer2AudioOutput(sessionId, mUid, mPid, NULL /*attributes*/);
 }
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
index 2dab2dd..3c11b17 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
@@ -662,33 +662,6 @@
     return INVALID_OPERATION;
 }
 
-status_t NuPlayer2Driver::getMetadata(
-        const media::Metadata::Filter& /* ids */, Parcel *records) {
-    Mutex::Autolock autoLock(mLock);
-
-    using media::Metadata;
-
-    Metadata meta(records);
-
-    meta.appendBool(
-            Metadata::kPauseAvailable,
-            mPlayerFlags & NuPlayer2::Source::FLAG_CAN_PAUSE);
-
-    meta.appendBool(
-            Metadata::kSeekBackwardAvailable,
-            mPlayerFlags & NuPlayer2::Source::FLAG_CAN_SEEK_BACKWARD);
-
-    meta.appendBool(
-            Metadata::kSeekForwardAvailable,
-            mPlayerFlags & NuPlayer2::Source::FLAG_CAN_SEEK_FORWARD);
-
-    meta.appendBool(
-            Metadata::kSeekAvailable,
-            mPlayerFlags & NuPlayer2::Source::FLAG_CAN_SEEK);
-
-    return OK;
-}
-
 void NuPlayer2Driver::notifyResetComplete(int64_t /* srcId */) {
     ALOGD("notifyResetComplete(%p)", this);
     Mutex::Autolock autoLock(mLock);
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
index bb30c76..fe17d03 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
@@ -61,9 +61,6 @@
     virtual status_t setParameter(int key, const Parcel &request) override;
     virtual status_t getParameter(int key, Parcel *reply) override;
 
-    virtual status_t getMetadata(
-            const media::Metadata::Filter& ids, Parcel *records) override;
-
     virtual status_t dump(int fd, const Vector<String16> &args) const override;
 
     virtual void onMessageReceived(const sp<AMessage> &msg) override;