[cc] Trace detailed tile info when --trace-all-rendered-frames

cc/test/fake_proxy.cc

 // Copyright 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 "cc/test/fake_proxy.h"
 
 namespace cc {
 
 bool FakeProxy::compositeAndReadback(void *pixels, const gfx::Rect&)
 {
@@ skipping 48 matching lines @@
 bool FakeProxy::commitPendingForTesting()
 {
     return false;
 }
 
 skia::RefPtr<SkPicture> FakeProxy::capturePicture()
 {
     return skia::RefPtr<SkPicture>();
 }
 
+scoped_ptr<base::Value> FakeProxy::asValue() const {
+    scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
+    return state.PassAs<base::Value>();
+}
+
+
 }  // namespace cc