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diff --git a/Source/WebKit/chromium/tests/CCRenderPassTest.cpp b/Source/WebKit/chromium/tests/CCRenderPassTest.cpp
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+++ b/Source/WebKit/chromium/tests/CCRenderPassTest.cpp
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+/*
+ * Copyright (C) 2012 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "CCRenderPass.h"
+
+#include "CCCheckerboardDrawQuad.h"
+#include "CCGeometryTestUtils.h"
+#include <gtest/gtest.h>
+#include <public/WebFilterOperations.h>
+#include <public/WebTransformationMatrix.h>
+
+using WebKit::WebFilterOperation;
+using WebKit::WebFilterOperations;
+using WebKit::WebTransformationMatrix;
+
+using namespace WebCore;
+
+namespace {
+
+class CCTestRenderPass : public CCRenderPass {
+public:
+    CCQuadList& quadList() { return m_quadList; }
+    CCSharedQuadStateList& sharedQuadStateList() { return m_sharedQuadStateList; }
+};
+
+struct CCRenderPassSize {
+    // If you add a new field to this class, make sure to add it to the copy() tests.
+    CCRenderPass::Id m_id;
+    CCQuadList m_quadList;
+    CCSharedQuadStateList m_sharedQuadStateList;
+    WebKit::WebTransformationMatrix m_transformToRootTarget;
+    IntRect m_outputRect;
+    FloatRect m_damageRect;
+    bool m_hasTransparentBackground;
+    bool m_hasOcclusionFromOutsideTargetSurface;
+    WebKit::WebFilterOperations m_filters;
+    WebKit::WebFilterOperations m_backgroundFilters;
+};
+
+TEST(CCRenderPassTest, copyShouldBeIdenticalExceptIdAndQuads)
+{
+    CCRenderPass::Id id(3, 2);
+    IntRect outputRect(45, 22, 120, 13);
+    WebTransformationMatrix transformToRoot(1, 0.5, 0.5, -0.5, -1, 0);
+
+    OwnPtr<CCRenderPass> pass(CCRenderPass::create(id, outputRect, transformToRoot));
+
+    IntRect damageRect(56, 123, 19, 43);
+    bool hasTransparentBackground = true;
+    bool hasOcclusionFromOutsideTargetSurface = true;
+    WebFilterOperations filters;
+    WebFilterOperations backgroundFilters;
+
+    filters.append(WebFilterOperation::createGrayscaleFilter(0.2f));
+    backgroundFilters.append(WebFilterOperation::createInvertFilter(0.2f));
+
+    pass->setDamageRect(damageRect);
+    pass->setHasTransparentBackground(hasTransparentBackground);
+    pass->setHasOcclusionFromOutsideTargetSurface(hasOcclusionFromOutsideTargetSurface);
+    pass->setFilters(filters);
+    pass->setBackgroundFilters(backgroundFilters);
+
+    // Stick a quad in the pass, this should not get copied.
+    CCTestRenderPass* testPass = static_cast<CCTestRenderPass*>(pass.get());
+    testPass->sharedQuadStateList().append(CCSharedQuadState::create(WebTransformationMatrix(), IntRect(), IntRect(), 1, false));
+    testPass->quadList().append(CCCheckerboardDrawQuad::create(testPass->sharedQuadStateList().last().get(), IntRect()));
+
+    CCRenderPass::Id newId(63, 4);
+
+    OwnPtr<CCRenderPass> copy(pass->copy(newId));
+    EXPECT_EQ(newId, copy->id());
+    EXPECT_RECT_EQ(pass->outputRect(), copy->outputRect());
+    EXPECT_EQ(pass->transformToRootTarget(), copy->transformToRootTarget());
+    EXPECT_RECT_EQ(pass->damageRect(), copy->damageRect());
+    EXPECT_EQ(pass->hasTransparentBackground(), copy->hasTransparentBackground());
+    EXPECT_EQ(pass->hasOcclusionFromOutsideTargetSurface(), copy->hasOcclusionFromOutsideTargetSurface());
+    EXPECT_EQ(pass->filters(), copy->filters());
+    EXPECT_EQ(pass->backgroundFilters(), copy->backgroundFilters());
+    EXPECT_EQ(0u, copy->quadList().size());
+
+    EXPECT_EQ(sizeof(CCRenderPassSize), sizeof(CCRenderPass));
+}
+
+} // namespace