cc: Add frame timing request plumbing through the layers.

cc/debug/frame_timing_request.cc

Index: cc/debug/frame_timing_request.cc
diff --git a/cc/debug/frame_timing_request.cc b/cc/debug/frame_timing_request.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6c54ea2817a8982b3618c83d10ba05745ec79ac9
--- /dev/null
+++ b/cc/debug/frame_timing_request.cc
@@ -0,0 +1,17 @@
+// Copyright 2015 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/frame_timing_request.h"
+
+namespace cc {
+
+FrameTimingRequest::FrameTimingRequest() : id_(0) {
+}
+
+FrameTimingRequest::FrameTimingRequest(int64_t request_id,
+                                       const gfx::Rect& rect)
+    : id_(request_id), rect_(rect) {
+}
+
+}  // namespace cc