cc: Plumbing for impl thread micro benchmarks

This patch adds plumbing for running micro benchmarks on the impl
thread. The concept is as follows:

- Create a main thread benchmark via gpu benchmarking extension
- On commit complete, if the benchmark provides an impl thread
  benchmark, it is created and scheduled to be run on the impl thread
- Impl thread benchmarks are run after an appropriate callback
- Impl thread benchmarks post a done callback (with results) that is
  run on the main thread
- The main thread benchmark gets the callback and posts its own done
  callback (with aggregated results)
- This gets back to the gpu benchmarking extension which sends the
  response back to the caller

R=enne@chromium.org, nduca@chromium.org

Review URL: https://codereview.chromium.org/67563002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235585 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 37 insertions, 0 deletions

diff --git a/cc/debug/micro_benchmark_controller_impl.h b/cc/debug/micro_benchmark_controller_impl.h
new file mode 100644
index 0000000..734bf63
--- /dev/null
+++ b/cc/debug/micro_benchmark_controller_impl.h
@@ -0,0 +1,37 @@
+// Copyright 2013 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.
+
+#ifndef CC_DEBUG_MICRO_BENCHMARK_CONTROLLER_IMPL_H_
+#define CC_DEBUG_MICRO_BENCHMARK_CONTROLLER_IMPL_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "cc/base/scoped_ptr_vector.h"
+#include "cc/debug/micro_benchmark_impl.h"
+
+namespace cc {
+
+class LayerTreeHostImpl;
+class CC_EXPORT MicroBenchmarkControllerImpl {
+ public:
+  explicit MicroBenchmarkControllerImpl(LayerTreeHostImpl* host);
+  ~MicroBenchmarkControllerImpl();
+
+  void DidCompleteCommit();
+
+  void ScheduleRun(scoped_ptr<MicroBenchmarkImpl> benchmark);
+
+ private:
+  void CleanUpFinishedBenchmarks();
+
+  LayerTreeHostImpl* host_;
+  ScopedPtrVector<MicroBenchmarkImpl> benchmarks_;
+
+  DISALLOW_COPY_AND_ASSIGN(MicroBenchmarkControllerImpl);
+};
+
+}  // namespace cc
+
+#endif  // CC_DEBUG_MICRO_BENCHMARK_CONTROLLER_IMPL_H_