cc: Trigger GPU rasterization based on a per-layer hint

cc/test/gpu_rasterization_settings.h

Index: cc/test/gpu_rasterization_settings.h
diff --git a/cc/test/gpu_rasterization_settings.h b/cc/test/gpu_rasterization_settings.h
new file mode 100644
index 0000000000000000000000000000000000000000..97c5710742670fad504c8d4a9d863a6f772bba71
--- /dev/null
+++ b/cc/test/gpu_rasterization_settings.h
@@ -0,0 +1,22 @@
+// 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.
+
+#ifndef CC_TEST_GPU_RASTERIZATION_SETTINGS_H_
+#define CC_TEST_GPU_RASTERIZATION_SETTINGS_H_
+
+#include "cc/trees/layer_tree_settings.h"
+
+namespace cc {
+
+class GpuRasterizationSettings : public LayerTreeSettings {
+ public:
+  GpuRasterizationSettings() {
+    impl_side_painting = true;
+    rasterization_site = GpuRasterization;
+  }
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_GPU_RASTERIZATION_SETTINGS_H_