Enable video painting on Canvas for Chrome on Android.

Source/WebKit/chromium/src/WebMediaPlayerClientImpl.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebMediaPlayerClientImpl_h
 #define WebMediaPlayerClientImpl_h
 
 #if ENABLE(VIDEO)
 
 #include "AudioSourceProvider.h"
 #include "MediaPlayerPrivate.h"
+#if defined(OS_ANDROID)
+#include "SkRefCnt.h"
+#include "SkBitmap.h"
+#endif
 #include "WebAudioSourceProviderClient.h"
 #include "WebMediaPlayerClient.h"
 #include <wtf/OwnPtr.h>
 #include <wtf/PassOwnPtr.h>
 
 namespace WebCore { class AudioSourceProviderClient; }
 
 namespace WebKit {
 
 class WebHelperPluginImpl;
@@ skipping 116 matching lines @@
     static WebCore::MediaPlayer::SupportsType supportsType(
         const WTF::String& type, const WTF::String& codecs, const String& keySystem, const WebCore::KURL&);
 #else
     static WebCore::MediaPlayer::SupportsType supportsType(
         const WTF::String& type, const WTF::String& codecs, const WebCore::KURL&);
 #endif
 #if USE(ACCELERATED_COMPOSITING)
     bool acceleratedRenderingInUse();
 #endif
 
+#if defined(OS_ANDROID)
+    // FIXME: This path "only works" on Android. It is a workaround for the problem that Skia could not handle Android's GL_TEXTURE_EXTERNAL_OES
+    // texture internally. It should be removed and replaced by the normal paint path.
+    // https://code.google.com/p/skia/issues/detail?id=1189&q=texture&colspec=ID%20Type%20Status%20Priority%20Owner%20Summary

[scherkus (not reviewing), 2013/04/09 18:31:26]

nit: can you remove everything starting from "&q=" onwards from the URL?

[hkuang, 2013/04/09 21:38:09]

Done. Going to land this change.

+    void paintOnAndroid(WebCore::GraphicsContext* context, WebCore::GraphicsContext3D* context3D, const WebCore::IntRect& rect, uint8_t alpha);
+    SkAutoTUnref<GrTexture> m_texture;
+    SkBitmap m_bitmap;
+#endif
+
     WebCore::MediaPlayer* m_mediaPlayer;
     OwnPtr<WebMediaPlayer> m_webMediaPlayer;
     WebCore::KURL m_url;
     bool m_delayingLoad;
     WebCore::MediaPlayer::Preload m_preload;
     RefPtr<WebHelperPluginImpl> m_helperPlugin;
     WebLayer* m_videoLayer;
     bool m_opaque;
     bool m_needsWebLayerForVideo;
     static bool m_isEnabled;
@@ skipping 48 matching lines @@
 #if ENABLE(MEDIA_SOURCE)
     RefPtr<WebCore::MediaSource> m_mediaSource;
 #endif
 };
 
 } // namespace WebKit
 
 #endif
 
 #endif