Enable SurfaceTexture based zero-copy texture uploading on Android platform

content/common/gpu/client/gl_helper.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_
 #define CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_
 
 #include "base/atomicops.h"
 #include "base/basictypes.h"
 #include "base/callback.h"
@@ skipping 230 matching lines @@
 
   // Copies all pixels from |previous_texture| into |texture| that are
   // inside the region covered by |old_damage| but not part of |new_damage|.
   void CopySubBufferDamage(GLuint texture,
                            GLuint previous_texture,
                            const SkRegion& new_damage,
                            const SkRegion& old_damage);
 
   // Simply creates a texture.
   GLuint CreateTexture();
+
   // Deletes a texture.
   void DeleteTexture(GLuint texture_id);
 
   // Insert a sync point into the GL command buffer.
   uint32 InsertSyncPoint();
   // Wait for the sync point before executing further GL commands.
   void WaitSyncPoint(uint32 sync_point);
 
   // Creates a mailbox holder that is attached to the given texture id, with a
   // sync point to wait on before using the mailbox. Returns a holder with an
@@ skipping 101 matching lines @@
   virtual void ReadbackYUV(const gpu::Mailbox& mailbox,
                            uint32 sync_point,
                            const scoped_refptr<media::VideoFrame>& target,
                            const base::Callback<void(bool)>& callback) = 0;
   virtual GLHelper::ScalerInterface* scaler() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_