Mojo: more idiomatic C++ bindings

mojo/gles2/command_buffer_client_impl.cc

Index: mojo/gles2/command_buffer_client_impl.cc
diff --git a/mojo/gles2/command_buffer_client_impl.cc b/mojo/gles2/command_buffer_client_impl.cc
index d5aebd5128f4743de11ba401fa7b882c4fc70165..b274533088bbd76829f569aecf82416b449a2809 100644
--- a/mojo/gles2/command_buffer_client_impl.cc
+++ b/mojo/gles2/command_buffer_client_impl.cc
@@ -8,7 +8,6 @@
 
 #include "base/logging.h"
 #include "base/process/process_handle.h"
-#include "mojo/public/cpp/bindings/allocation_scope.h"
 #include "mojo/public/cpp/bindings/sync_dispatcher.h"
 #include "mojo/services/gles2/command_buffer_type_conversions.h"
 #include "mojo/services/gles2/mojo_buffer_backing.h"
@@ -85,7 +84,6 @@ bool CommandBufferClientImpl::Initialize() {
   CommandBufferSyncClientPtr sync_client =
       MakeProxy<CommandBufferSyncClient>(sync_pipe.handle1.Pass(),
                                          async_waiter_);
-  AllocationScope scope;
   command_buffer_->Initialize(sync_client.Pass(), duped.Pass());
   // Wait for DidInitialize to come on the sync client pipe.
   if (!sync_dispatcher_->WaitAndDispatchOneMessage()) {
@@ -149,7 +147,6 @@ scoped_refptr<gpu::Buffer> CommandBufferClientImpl::CreateTransferBuffer(
 
   *id = ++next_transfer_buffer_id_;
 
-  AllocationScope scope;
   command_buffer_->RegisterTransferBuffer(
       *id, duped.Pass(), static_cast<uint32_t>(size));
 
@@ -236,9 +233,9 @@ void CommandBufferClientImpl::DidInitialize(bool success) {
   initialize_result_ = success;
 }
 
-void CommandBufferClientImpl::DidMakeProgress(const CommandBufferState& state) {
-  if (state.generation() - last_state_.generation < 0x80000000U)
-    last_state_ = state;
+void CommandBufferClientImpl::DidMakeProgress(CommandBufferStatePtr state) {
+  if (state->generation - last_state_.generation < 0x80000000U)
+    last_state_ = state.To<State>();
 }
 
 void CommandBufferClientImpl::DidDestroy() {