Revert of Reduce copying of local data structures in GeometryMapper and PaintLayerClipper.

third_party/WebKit/Source/core/paint/PaintInvalidator.cpp

Index: third_party/WebKit/Source/core/paint/PaintInvalidator.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp b/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp
index 5a24c12c9076fde27c3ddc05a5974a9de7870edc..54bb8dc00a85b2f0d1823554bdbaef2251a1dafa 100644
--- a/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp
@@ -127,11 +127,11 @@
       PropertyTreeState currentTreeState(
           context.treeBuilderContext.current.transform,
           context.treeBuilderContext.current.clip, nullptr);
-
-      FloatRect floatRect(rect);
-      geometryMapper.sourceToDestinationVisualRect(
-          currentTreeState, *containerContentsProperties, floatRect);
-      result = LayoutRect(floatRect);
+      result = LayoutRect(
+          geometryMapper
+              .sourceToDestinationVisualRect(FloatRect(rect), currentTreeState,
+                                             *containerContentsProperties)
+              .rect());
     }
 
     // Convert the result to the container's contents space.
@@ -182,11 +182,12 @@
             ->contentsProperties()
             ->transform();
     if (context.treeBuilderContext.current.transform != containerTransform) {
-      FloatRect rect = FloatRect(FloatPoint(point), FloatSize());
-      m_geometryMapper.sourceToDestinationRect(
-          context.treeBuilderContext.current.transform, containerTransform,
-          rect);
-      point = LayoutPoint(rect.location());
+      point = LayoutPoint(m_geometryMapper
+                              .sourceToDestinationRect(
+                                  FloatRect(FloatPoint(point), FloatSize()),
+                                  context.treeBuilderContext.current.transform,
+                                  containerTransform)
+                              .location());
     }
 
     // Convert the result to the container's contents space.