content: Make sure all CreateGpuMemoryBuffer messages are handled.

content/gpu/gpu_child_thread.h

Index: content/gpu/gpu_child_thread.h
diff --git a/content/gpu/gpu_child_thread.h b/content/gpu/gpu_child_thread.h
index 70a6bb8c13a5014591263eaa09f3c5ca2442d6d6..3993e51e627f8a3bea7688143efb9b4d66657719 100644
--- a/content/gpu/gpu_child_thread.h
+++ b/content/gpu/gpu_child_thread.h
@@ -27,6 +27,7 @@ class TargetServices;
 }
 
 namespace content {
+class GpuMemoryBufferFactory;
 class GpuWatchdogThread;
 
 // The main thread of the GPU child process. There will only ever be one of
@@ -37,10 +38,11 @@ class GpuChildThread : public ChildThreadImpl {
  public:
   typedef std::queue<IPC::Message*> DeferredMessages;
 
-  explicit GpuChildThread(GpuWatchdogThread* gpu_watchdog_thread,
-                          bool dead_on_arrival,
-                          const gpu::GPUInfo& gpu_info,
-                          const DeferredMessages& deferred_messages);
+  GpuChildThread(GpuWatchdogThread* gpu_watchdog_thread,
+                 bool dead_on_arrival,
+                 const gpu::GPUInfo& gpu_info,
+                 const DeferredMessages& deferred_messages,
+                 GpuMemoryBufferFactory* gpu_memory_buffer_factory);
 
   explicit GpuChildThread(const InProcessChildThreadParams& params);
 
@@ -94,6 +96,9 @@ class GpuChildThread : public ChildThreadImpl {
   // Whether the GPU thread is running in the browser process.
   bool in_browser_process_;
 
+  // The GpuMemoryBufferFactory instance used to allocate GpuMemoryBuffers.
+  GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };