command_buffer: Batch command processing to reduce handler overheads.

gpu/command_buffer/service/mocks.cc

 // Copyright (c) 2012 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 "base/threading/thread.h"
 #include "base/time/time.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/mocks.h"
 
+using testing::Invoke;
+using testing::_;
+
 namespace gpu {
 
-AsyncAPIMock::AsyncAPIMock() {
+AsyncAPIMock::AsyncAPIMock(bool default_do_commands) {
   testing::DefaultValue<error::Error>::Set(
       error::kNoError);
+
+  if (default_do_commands) {
+    ON_CALL(*this, DoCommands(_, _, _, _))
+        .WillByDefault(Invoke(this, &AsyncAPIMock::FakeDoCommands));
+  }
 }
 
 AsyncAPIMock::~AsyncAPIMock() {}
 
+error::Error AsyncAPIMock::FakeDoCommands(unsigned int num_commands,
+                                          const void* buffer,
+                                          int num_entries,
+                                          int* entries_processed) {
+  return AsyncAPIInterface::DoCommands(
+      num_commands, buffer, num_entries, entries_processed);
+}
+
 void AsyncAPIMock::SetToken(unsigned int command,
                             unsigned int arg_count,
                             const void* _args) {
   DCHECK(engine_);
   DCHECK_EQ(1u, command);
   DCHECK_EQ(1u, arg_count);
   const cmd::SetToken* args =
       static_cast<const cmd::SetToken*>(_args);
   engine_->set_token(args->token);
 }
 
 namespace gles2 {
 
 MockShaderTranslator::MockShaderTranslator() {}
 
 MockShaderTranslator::~MockShaderTranslator() {}
 
 MockProgramCache::MockProgramCache() {}
 MockProgramCache::~MockProgramCache() {}
 
 MockMemoryTracker::MockMemoryTracker() {}
 MockMemoryTracker::~MockMemoryTracker() {}
 
 }  // namespace gles2
 }  // namespace gpu