content: Add CreateGpuMemoryBufferFromHandle to GpuMemoryBufferFactory interface.

content/common/gpu/gpu_memory_buffer_factory_surface_texture.h

Index: content/common/gpu/gpu_memory_buffer_factory_surface_texture.h
diff --git a/content/common/gpu/gpu_memory_buffer_factory_surface_texture.h b/content/common/gpu/gpu_memory_buffer_factory_surface_texture.h
index 57c3cd9ad2bf19b95ec25280a1b078da8f6d3e5f..1696df3d3315207269064c77ae532174e4d814fd 100644
--- a/content/common/gpu/gpu_memory_buffer_factory_surface_texture.h
+++ b/content/common/gpu/gpu_memory_buffer_factory_surface_texture.h
@@ -41,6 +41,12 @@ class CONTENT_EXPORT GpuMemoryBufferFactorySurfaceTexture
       gfx::BufferUsage usage,
       int client_id,
       gfx::PluginWindowHandle surface_handle) override;
+  gfx::GpuMemoryBufferHandle CreateGpuMemoryBufferFromHandle(
+      const gfx::GpuMemoryBufferHandle& handle,
+      gfx::GpuMemoryBufferId id,
+      const gfx::Size& size,
+      gfx::BufferFormat format,
+      int client_id) override;
   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                               int client_id) override;
   gpu::ImageFactory* AsImageFactory() override;