diff --git a/media/libdatasource/MediaHTTP.cpp b/media/libdatasource/MediaHTTP.cpp
index e57510d..58c1ce8 100644
--- a/media/libdatasource/MediaHTTP.cpp
+++ b/media/libdatasource/MediaHTTP.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@
 
 #include <datasource/MediaHTTP.h>
 
-#include <binder/IServiceManager.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/FoundationUtils.h>
@@ -30,45 +29,156 @@
 namespace android {
 
 MediaHTTP::MediaHTTP(const sp<MediaHTTPConnection> &conn)
-    : ClearMediaHTTP(conn),
-      mDrmManagerClient(NULL) {
+    : mInitCheck((conn != NULL) ? OK : NO_INIT),
+      mHTTPConnection(conn),
+      mCachedSizeValid(false),
+      mCachedSize(0ll) {
 }
 
 MediaHTTP::~MediaHTTP() {
-    clearDRMState_l();
 }
 
-// DRM...
-
-sp<DecryptHandle> MediaHTTP::DrmInitialization(const char* mime) {
-    if (mDrmManagerClient == NULL) {
-        mDrmManagerClient = new DrmManagerClient();
+status_t MediaHTTP::connect(
+        const char *uri,
+        const KeyedVector<String8, String8> *headers,
+        off64_t /* offset */) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
     }
 
-    if (mDrmManagerClient == NULL) {
-        return NULL;
+    KeyedVector<String8, String8> extHeaders;
+    if (headers != NULL) {
+        extHeaders = *headers;
     }
 
-    if (mDecryptHandle == NULL) {
-        mDecryptHandle = mDrmManagerClient->openDecryptSession(
-                String8(mLastURI.c_str()), mime);
+    if (extHeaders.indexOfKey(String8("User-Agent")) < 0) {
+        extHeaders.add(String8("User-Agent"), String8(MakeUserAgent().c_str()));
     }
 
-    if (mDecryptHandle == NULL) {
-        delete mDrmManagerClient;
-        mDrmManagerClient = NULL;
+    mLastURI = uri;
+    // reconnect() calls with uri == old mLastURI.c_str(), which gets zapped
+    // as part of the above assignment. Ensure no accidental later use.
+    uri = NULL;
+
+    bool success = mHTTPConnection->connect(mLastURI.c_str(), &extHeaders);
+
+    mLastHeaders = extHeaders;
+
+    mCachedSizeValid = false;
+
+    if (success) {
+        AString sanitized = uriDebugString(mLastURI);
+        mName = String8::format("MediaHTTP(%s)", sanitized.c_str());
     }
 
-    return mDecryptHandle;
+    return success ? OK : UNKNOWN_ERROR;
 }
 
-void MediaHTTP::clearDRMState_l() {
-    if (mDecryptHandle != NULL) {
-        // To release mDecryptHandle
-        CHECK(mDrmManagerClient);
-        mDrmManagerClient->closeDecryptSession(mDecryptHandle);
-        mDecryptHandle = NULL;
+void MediaHTTP::close() {
+    disconnect();
+}
+
+void MediaHTTP::disconnect() {
+    mName = String8("MediaHTTP(<disconnected>)");
+    if (mInitCheck != OK) {
+        return;
     }
+
+    mHTTPConnection->disconnect();
+}
+
+status_t MediaHTTP::initCheck() const {
+    return mInitCheck;
+}
+
+ssize_t MediaHTTP::readAt(off64_t offset, void *data, size_t size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    int64_t startTimeUs = ALooper::GetNowUs();
+
+    size_t numBytesRead = 0;
+    while (numBytesRead < size) {
+        size_t copy = size - numBytesRead;
+
+        if (copy > 64 * 1024) {
+            // limit the buffer sizes transferred across binder boundaries
+            // to avoid spurious transaction failures.
+            copy = 64 * 1024;
+        }
+
+        ssize_t n = mHTTPConnection->readAt(
+                offset + numBytesRead, (uint8_t *)data + numBytesRead, copy);
+
+        if (n < 0) {
+            return n;
+        } else if (n == 0) {
+            break;
+        }
+
+        numBytesRead += n;
+    }
+
+    int64_t delayUs = ALooper::GetNowUs() - startTimeUs;
+
+    addBandwidthMeasurement(numBytesRead, delayUs);
+
+    return numBytesRead;
+}
+
+status_t MediaHTTP::getSize(off64_t *size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    // Caching the returned size so that it stays valid even after a
+    // disconnect. NuCachedSource2 relies on this.
+
+    if (!mCachedSizeValid) {
+        mCachedSize = mHTTPConnection->getSize();
+        mCachedSizeValid = true;
+    }
+
+    *size = mCachedSize;
+
+    return *size < 0 ? *size : static_cast<status_t>(OK);
+}
+
+uint32_t MediaHTTP::flags() {
+    return kWantsPrefetching | kIsHTTPBasedSource;
+}
+
+status_t MediaHTTP::reconnectAtOffset(off64_t offset) {
+    return connect(mLastURI.c_str(), &mLastHeaders, offset);
+}
+
+
+String8 MediaHTTP::getUri() {
+    if (mInitCheck != OK) {
+        return String8::empty();
+    }
+
+    String8 uri;
+    if (OK == mHTTPConnection->getUri(&uri)) {
+        return uri;
+    }
+    return String8(mLastURI.c_str());
+}
+
+String8 MediaHTTP::getMIMEType() const {
+    if (mInitCheck != OK) {
+        return String8("application/octet-stream");
+    }
+
+    String8 mimeType;
+    status_t err = mHTTPConnection->getMIMEType(&mimeType);
+
+    if (err != OK) {
+        return String8("application/octet-stream");
+    }
+
+    return mimeType;
 }
 
 }  // namespace android