Start of hardware overlay support in CC with Ubercompositor.

cc/output/overlay_candidate.cc

Index: cc/output/overlay_candidate.cc
diff --git a/cc/output/overlay_candidate.cc b/cc/output/overlay_candidate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dd3ebc27ef05c79fa36b99bcdb2c481d63dbff88
--- /dev/null
+++ b/cc/output/overlay_candidate.cc
@@ -0,0 +1,17 @@
+// Copyright 2014 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/output/overlay_candidate_validator.h"
+
+namespace cc {
+
+OverlayCandidate::OverlayCandidate()
+    : transform(NONE),
+      format(RGBA_8888),
+      uv_rect(0.f, 0.f, 1.f, 1.f),
+      overlay_handled(false) {}
+
+OverlayCandidate::~OverlayCandidate() {}
+
+}  // namespace cc