Update cc snapshot to r127918

cc/CCRenderPass.cpp

 // Copyright 2011 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 "config.h"
 
 #include "CCRenderPass.h"
 
 #include "CCLayerImpl.h"
 #include "CCMathUtil.h"
 #include "CCOcclusionTracker.h"
 #include "CCQuadCuller.h"
 #include "CCSharedQuadState.h"
 #include "CCSolidColorDrawQuad.h"
 
 using WebKit::WebTransformationMatrix;
 
 namespace WebCore {
 
-PassOwnPtr<CCRenderPass> CCRenderPass::create(int id, IntRect outputRect, const WebKit::WebTransformationMatrix& transformToRootTarget)
+PassOwnPtr<CCRenderPass> CCRenderPass::create(Id id, IntRect outputRect, const WebKit::WebTransformationMatrix& transformToRootTarget)
 {
     return adoptPtr(new CCRenderPass(id, outputRect, transformToRootTarget));
 }
 
-CCRenderPass::CCRenderPass(int id, IntRect outputRect, const WebKit::WebTransformationMatrix& transformToRootTarget)
+CCRenderPass::CCRenderPass(Id id, IntRect outputRect, const WebKit::WebTransformationMatrix& transformToRootTarget)
     : m_id(id)
     , m_transformToRootTarget(transformToRootTarget)
     , m_outputRect(outputRect)
     , m_hasTransparentBackground(true)
     , m_hasOcclusionFromOutsideTargetSurface(false)
 {
-    ASSERT(id > 0);
+    ASSERT(id.layerId > 0);
+    ASSERT(id.index >= 0);
+}
+
+PassOwnPtr<CCRenderPass> CCRenderPass::copy(Id newId) const
+{
+    ASSERT(newId != m_id);
+
+    OwnPtr<CCRenderPass> copyPass(create(newId, m_outputRect, m_transformToRootTarget));
+    copyPass->setDamageRect(m_damageRect);
+    copyPass->setHasTransparentBackground(m_hasTransparentBackground);
+    copyPass->setHasOcclusionFromOutsideTargetSurface(m_hasOcclusionFromOutsideTargetSurface);
+    copyPass->setFilters(m_filters);
+    copyPass->setBackgroundFilters(m_backgroundFilters);
+    return copyPass.release();
 }
 
 void CCRenderPass::appendQuadsForLayer(CCLayerImpl* layer, CCOcclusionTrackerImpl* occlusionTracker, CCAppendQuadsData& appendQuadsData)
 {
     const bool forSurface = false;
     CCQuadCuller quadCuller(m_quadList, m_sharedQuadStateList, layer, occlusionTracker, layer->hasDebugBorders(), forSurface);
 
     layer->appendQuads(quadCuller, appendQuadsData);
 }
 
@@ skipping 36 matching lines @@
     Vector<IntRect> fillRects = fillRegion.rects();
     for (size_t i = 0; i < fillRects.size(); ++i) {
         // The root layer transform is composed of translations and scales only, no perspective, so mapping is sufficient.
         IntRect layerRect = CCMathUtil::mapClippedRect(transformToLayerSpace, fillRects[i]);
         // Skip the quad culler and just append the quads directly to avoid occlusion checks.
         m_quadList.append(CCSolidColorDrawQuad::create(sharedQuadState, layerRect, screenBackgroundColor));
     }
 }
 
 }