content: Add DeletedGpuMemoryBuffer IPC.

content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc

 // Copyright 2014 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.
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "content/common/android/surface_texture_lookup.h"
 #include "ui/gl/gl_bindings.h"
@@ skipping 45 matching lines @@
   switch (internalformat) {
     case GL_RGBA8_OES:
       return WINDOW_FORMAT_RGBA_8888;
     default:
       NOTREACHED();
       return 0;
   }
 }
 
 bool GpuMemoryBufferImplSurfaceTexture::InitializeFromHandle(
-    gfx::GpuMemoryBufferHandle handle) {
+    const gfx::GpuMemoryBufferHandle& handle) {
   TRACE_EVENT0("gpu",
                "GpuMemoryBufferImplSurfaceTexture::InitializeFromHandle");
 
   DCHECK(IsFormatSupported(internalformat_));
   DCHECK(!native_window_);
   native_window_ = SurfaceTextureLookup::GetInstance()->AcquireNativeWidget(
       handle.surface_texture_id.primary_id,
       handle.surface_texture_id.secondary_id);
   if (!native_window_)
     return false;
@@ skipping 37 matching lines @@
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplSurfaceTexture::GetHandle()
     const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::SURFACE_TEXTURE_BUFFER;
   handle.surface_texture_id = surface_texture_id_;
   return handle;
 }
 
 }  // namespace content