MTP: Fix problems with modification dates for folders and non-media files

Also removed an unnecessary parameter to MtpDatabase.endSendobject()

BUG: 3352142

Change-Id: I6fd812dcba4814956bc8bc1cbd6bd5c868197790
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index 236cd0a..b1bd145 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -700,6 +700,9 @@
         if (ret && ret != -EEXIST)
             return MTP_RESPONSE_GENERAL_ERROR;
         chown((const char *)path, getuid(), mFileGroup);
+
+        // SendObject does not get sent for directories, so call endSendObject here instead
+        mDatabase->endSendObject(path, handle, MTP_FORMAT_ASSOCIATION, MTP_RESPONSE_OK);
     } else {
         mSendObjectFilePath = path;
         // save the handle for the SendObject call, which should follow
@@ -718,7 +721,6 @@
     MtpResponseCode result = MTP_RESPONSE_OK;
     mode_t mask;
     int ret;
-    uint64_t actualSize = -1;
 
     if (mSendObjectHandle == kInvalidObjectHandle) {
         LOGE("Expected SendObjectInfo before SendObject");
@@ -761,18 +763,11 @@
             result = MTP_RESPONSE_TRANSACTION_CANCELLED;
         else
             result = MTP_RESPONSE_GENERAL_ERROR;
-    } else if (mSendObjectFileSize == 0xFFFFFFFF) {
-        // actual size is likely > 4 gig so stat the file to compute actual length
-        struct stat s;
-        if (lstat(mSendObjectFilePath, &s) == 0) {
-            actualSize = s.st_size;
-            LOGD("actualSize: %lld\n", actualSize);
-        }
     }
 
 done:
     mDatabase->endSendObject(mSendObjectFilePath, mSendObjectHandle, mSendObjectFormat,
-            actualSize, result == MTP_RESPONSE_OK);
+            result == MTP_RESPONSE_OK);
     mSendObjectHandle = kInvalidObjectHandle;
     mSendObjectFormat = 0;
     return result;