Supporting blob urls for html5 media

content/public/android/java/src/org/chromium/content/browser/MediaResourceGetter.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.media.MediaMetadataRetriever;
 import android.net.ConnectivityManager;
@@ skipping 80 matching lines @@
 
         MediaMetadataRetriever retriever = new MediaMetadataRetriever();
         try {
             Uri uri = Uri.parse(url);
             String scheme = uri.getScheme();
             if (scheme == null || scheme.equals("file")) {
                 File file = new File(uri.getPath());
                 String path = file.getAbsolutePath();
                 if (file.exists() && (path.startsWith("/mnt/sdcard/") ||
                         path.startsWith("/sdcard/") ||
-                        path.startsWith(PathUtils.getExternalStorageDirectory()))) {
+                        path.startsWith(PathUtils.getExternalStorageDirectory()) ||
+                        path.startsWith(context.getCacheDir().getAbsolutePath()))) {
                     retriever.setDataSource(path);
                 } else {
-                    Log.e(TAG, "Unable to read file: " + url);
                     return new MediaMetadata(durationInMilliseconds, width, height, success);
                 }
             } else {
                 HashMap<String, String> headersMap = new HashMap<String, String>();
                 if (!TextUtils.isEmpty(cookies)) {
                     headersMap.put("Cookie", cookies);
                 }
                 retriever.setDataSource(url, headersMap);
             }
             String duration = retriever.extractMetadata(
@@ skipping 10 matching lines @@
             height = Integer.parseInt(videoHeight);
             success = true;
         } catch (IllegalArgumentException e) {
             Log.e(TAG, "Invalid url: " + e);
         } catch (RuntimeException e) {
             Log.e(TAG, "Invalid url: " + e);
         }
         return new MediaMetadata(durationInMilliseconds, width, height, success);
     }
 }