Enable SurfaceTexture based zero-copy texture uploading on Android platform

content/common/gpu/gpu_command_buffer_stub.cc

Index: content/common/gpu/gpu_command_buffer_stub.cc
diff --git a/content/common/gpu/gpu_command_buffer_stub.cc b/content/common/gpu/gpu_command_buffer_stub.cc
index 13b7b22f319c0fc84e8652b84584b7ea0cb8c013..a3f27ad0a0ef68595da97d756718144e35cbc393 100644
--- a/content/common/gpu/gpu_command_buffer_stub.cc
+++ b/content/common/gpu/gpu_command_buffer_stub.cc
@@ -41,6 +41,7 @@
 
 #if defined(OS_ANDROID)
 #include "content/common/gpu/stream_texture_android.h"
+#include "content/common/gpu/surface_texture_bridge_android.h"
 #endif
 
 namespace content {
@@ -225,6 +226,8 @@ bool GpuCommandBufferStub::OnMessageReceived(const IPC::Message& message) {
                         OnDestroyGpuMemoryBuffer);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_CreateStreamTexture,
                         OnCreateStreamTexture)
+    IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_CreateSurfaceTexture,
+                        OnCreateSurfaceTexture)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -581,6 +584,23 @@ void GpuCommandBufferStub::OnCreateStreamTexture(uint32 texture_id,
 #endif
 }
 
+void GpuCommandBufferStub::OnCreateSurfaceTexture(
+    uint32 gpu_memory_buffer,
+    uint32* surface_texture_handle,
+    uint32* gpu_texture_id) {
+#if defined(OS_ANDROID)
+  gfx::SurfaceTexture* surface_texture =
+      SurfaceTextureBridge::CreateSurfaceTexture(this, gpu_texture_id);
+  surface_texture->AddRef();
+  SurfaceTextureBridge::SetupSurfaceTexturePeer(
+      this, reinterpret_cast<void*>(gpu_memory_buffer), surface_texture);
+  *surface_texture_handle = reinterpret_cast<uint32>(surface_texture);
+#else
+  *surface_texture_handle = 0;
+  *gpu_texture_id = 0;
+#endif
+}
+
 void GpuCommandBufferStub::SetLatencyInfoCallback(
     const LatencyInfoCallback& callback) {
   latency_info_callback_ = callback;