Support Surface and Layer Readback in the SkiaPipelines.

Test: CTS TextureViewTests and UIRendering
Change-Id: I2969c8f5a975bfd9aebcbb585c64d1fcbb2487c2
diff --git a/libs/hwui/renderthread/OpenGLPipeline.cpp b/libs/hwui/renderthread/OpenGLPipeline.cpp
index afeeef8..177a729 100644
--- a/libs/hwui/renderthread/OpenGLPipeline.cpp
+++ b/libs/hwui/renderthread/OpenGLPipeline.cpp
@@ -20,7 +20,7 @@
 #include "EglManager.h"
 #include "ProfileRenderer.h"
 #include "renderstate/RenderState.h"
-#include "Readback.h"
+#include "OpenGLReadback.h"
 
 #include <android/native_window.h>
 #include <cutils/properties.h>
@@ -117,9 +117,9 @@
 }
 
 bool OpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
+    ATRACE_CALL();
     layer->apply();
-    return Readback::copyTextureLayerInto(mRenderThread, *(layer->backingLayer()), bitmap)
-            == CopyResult::Success;
+    return OpenGLReadbackImpl::copyLayerInto(mRenderThread, *(layer->backingLayer()), bitmap);
 }
 
 DeferredLayerUpdater* OpenGLPipeline::createTextureLayer() {