More early returns in GeometryMapper methods

third_party/WebKit/Source/platform/graphics/paint/GeometryMapperTest.cpp

 // Copyright 2016 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 "platform/graphics/paint/GeometryMapper.h"
 
 #include "platform/geometry/GeometryTestHelpers.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/graphics/paint/ClipPaintPropertyNode.h"
 #include "platform/graphics/paint/EffectPaintPropertyNode.h"
@@ skipping 77 matching lines @@
     EXPECT_TRUE(success);                                                      \
     EXPECT_RECT_EQ(expectedTransformedRect,                                    \
                    geometryMapper->localToAncestorRect(                        \
                        inputRect, localPropertyTreeState,                      \
                        ancestorPropertyTreeState, success));                   \
     EXPECT_RECT_EQ(expectedTransformedRect,                                    \
                    geometryMapper->mapRectToDestinationSpace(                  \
                        inputRect, localPropertyTreeState,                      \
                        ancestorPropertyTreeState, success));                   \
     EXPECT_TRUE(success);                                                      \
-    EXPECT_EQ(                                                                 \
-        expectedTransformToAncestor,                                           \
-        getPrecomputedDataForAncestor(ancestorPropertyTreeState)               \
-            .toAncestorTransforms.get(localPropertyTreeState.transform()));    \
-    EXPECT_EQ(expectedClipInAncestorSpace,                                     \
-              getPrecomputedDataForAncestor(ancestorPropertyTreeState)         \
-                  .toAncestorClipRects.get(localPropertyTreeState.clip()));    \
+    if (ancestorPropertyTreeState.transform() !=                               \
+        localPropertyTreeState.transform()) {                                  \
+      EXPECT_EQ(                                                               \
+          expectedTransformToAncestor,                                         \
+          getPrecomputedDataForAncestor(ancestorPropertyTreeState)             \
+              .toAncestorTransforms.get(localPropertyTreeState.transform()));  \
+    }                                                                          \
+    if (ancestorPropertyTreeState.clip() != localPropertyTreeState.clip()) {   \
+      EXPECT_EQ(expectedClipInAncestorSpace,                                   \
+                getPrecomputedDataForAncestor(ancestorPropertyTreeState)       \
+                    .toAncestorClipRects.get(localPropertyTreeState.clip()));  \
+    }                                                                          \
   } while (false)
 
 TEST_F(GeometryMapperTest, Root) {
   FloatRect input(0, 0, 100, 100);
 
   CHECK_MAPPINGS(input, input, input,
                  TransformPaintPropertyNode::root()->matrix(),
                  ClipPaintPropertyNode::root()->clipRect().rect(),
                  rootPropertyTreeState(), rootPropertyTreeState());
 }
@@ skipping 461 matching lines @@
   EXPECT_EQ(rootPropertyTreeState().transform(),
             leastCommonAncestor(childOfChild2.get(),
                                 rootPropertyTreeState().transform()));
   EXPECT_EQ(child2, leastCommonAncestor(childOfChild2.get(), child2.get()));
 
   EXPECT_EQ(rootPropertyTreeState().transform(),
             leastCommonAncestor(child1.get(), child2.get()));
 }
 
 }  // namespace blink