cc: Plumbing for impl thread micro benchmarks

cc/debug/micro_benchmark_controller_impl.cc

+// 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.
+
+#include "cc/debug/micro_benchmark_controller_impl.h"
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/values.h"
+#include "cc/trees/layer_tree_host_impl.h"
+
+namespace cc {
+
+namespace {
+
+class IsDonePredicate {
+ public:
+  typedef const MicroBenchmarkImpl* argument_type;
+  typedef bool result_type;
+
+  result_type operator()(argument_type benchmark) const {
+    return benchmark->IsDone();
+  }
+};
+
+}  // namespace
+
+MicroBenchmarkControllerImpl::MicroBenchmarkControllerImpl(
+    LayerTreeHostImpl* host)
+    : host_(host) {
+  DCHECK(host_);
+}
+
+MicroBenchmarkControllerImpl::~MicroBenchmarkControllerImpl() {}
+
+void MicroBenchmarkControllerImpl::ScheduleRun(
+    scoped_ptr<MicroBenchmarkImpl> benchmark) {
+  benchmarks_.push_back(benchmark.Pass());
+}
+
+void MicroBenchmarkControllerImpl::DidCompleteCommit() {
+  for (ScopedPtrVector<MicroBenchmarkImpl>::iterator it = benchmarks_.begin();
+       it != benchmarks_.end();
+       ++it) {
+    DCHECK(!(*it)->IsDone());
+    (*it)->DidCompleteCommit(host_);
+  }
+
+  CleanUpFinishedBenchmarks();
+}
+
+void MicroBenchmarkControllerImpl::CleanUpFinishedBenchmarks() {
+  benchmarks_.erase(
+      benchmarks_.partition(std::not1(IsDonePredicate())),
+      benchmarks_.end());
+}
+
+}  // namespace cc