Remove the assumption about client_id from gpu memory buffer allocation on the browser side.

content/common/gpu/client/gpu_memory_buffer_impl.h

Index: content/common/gpu/client/gpu_memory_buffer_impl.h
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl.h b/content/common/gpu/client/gpu_memory_buffer_impl.h
index b517ec0177dcdc2f5311c529dcd07ca463be8fc0..2da6b437e8ac60d44a70e441632fafb29918cfc8 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl.h
+++ b/content/common/gpu/client/gpu_memory_buffer_impl.h
@@ -23,20 +23,21 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   virtual ~GpuMemoryBufferImpl();
 
   // Creates a GPU memory buffer instance with |size| and |internalformat| for
-  // |usage|.
+  // |usage| by the current process and |client_id|.
   static void Create(const gfx::Size& size,
                      unsigned internalformat,
                      unsigned usage,
+                     int client_id,
                      const CreationCallback& callback);
 
   // Allocates a GPU memory buffer with |size| and |internalformat| for |usage|
-  // by |child_process| identified by |child_id|. The |handle| returned can be
+  // by |child_process| and |child_client_id|. The |handle| returned can be
   // used by the |child_process| to create an instance of this class.
   static void AllocateForChildProcess(const gfx::Size& size,
                                       unsigned internalformat,
                                       unsigned usage,
                                       base::ProcessHandle child_process,
-                                      int child_id,
+                                      int child_client_id,
                                       const AllocationCallback& callback);
 
   // Notify that GPU memory buffer has been deleted by |child_process|.