Merge "Remove LayerRenderer."

core/jni/android_view_HardwareLayer.cpp

libs/hwui/Android.mk

libs/hwui/Caches.cpp

libs/hwui/DeferredLayerUpdater.cpp

libs/hwui/DeferredLayerUpdater.h

libs/hwui/Layer.cpp

libs/hwui/Layer.h

libs/hwui/LayerRenderer.cpp

libs/hwui/LayerRenderer.h

libs/hwui/RenderNode.cpp

libs/hwui/renderthread/CanvasContext.cpp

libs/hwui/renderthread/CanvasContext.h

libs/hwui/renderthread/IRenderPipeline.h

libs/hwui/renderthread/OpenGLPipeline.cpp

libs/hwui/renderthread/OpenGLPipeline.h

libs/hwui/renderthread/RenderProxy.cpp

libs/hwui/tests/common/TestUtils.cpp

libs/hwui/tests/unit/DeferredLayerUpdaterTests.cpp

libs/hwui/tests/unit/RenderNodeTests.cpp