Reduce the number of ObjectPaintProperties

third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp

 // Copyright 2015 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 "bindings/core/v8/ScriptController.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 996 matching lines @@
   auto* frameElement = toHTMLIFrameElement(document().getElementById("frame"));
   auto* frameDocument = frameElement->contentDocument();
   auto* innerDiv = frameDocument->getElementById("div");
   auto* innerDivObject = innerDiv->layoutObject();
   EXPECT_FALSE(frameDocument->view()->shouldThrottleRendering());
 
   frameElement->setAttribute(HTMLNames::styleAttr,
                              "transform: translateY(1000px)");
   compositeFrame();
   EXPECT_TRUE(frameDocument->view()->canThrottleRendering());
-  EXPECT_FALSE(innerDivObject->paintProperties()->transform());
+  EXPECT_FALSE(innerDivObject->paintProperties());
 
   // Mutating the throttled frame should not cause paint property update.
   innerDiv->setAttribute(HTMLNames::styleAttr, "transform: translateY(20px)");
   EXPECT_FALSE(compositor().needsBeginFrame());
   EXPECT_TRUE(frameDocument->view()->canThrottleRendering());
   {
     DocumentLifecycle::AllowThrottlingScope throttlingScope(
         document().lifecycle());
     document().view()->updateAllLifecyclePhases();
   }
-  EXPECT_FALSE(innerDivObject->paintProperties()->transform());
+  EXPECT_FALSE(innerDivObject->paintProperties());
 
   // Move the frame back on screen to unthrottle it.
   frameElement->setAttribute(HTMLNames::styleAttr, "");
   // The first update unthrottles the frame, the second actually update layout
   // and paint properties etc.
   compositeFrame();
   compositeFrame();
   EXPECT_FALSE(frameDocument->view()->canThrottleRendering());
   EXPECT_EQ(TransformationMatrix().translate(0, 20),
             innerDiv->layoutObject()->paintProperties()->transform()->matrix());
@@ skipping 46 matching lines @@
   // Setting display:none for the parent frame unthrottles the parent but not
   // the child. This behavior matches Safari.
   frameElement->setAttribute(styleAttr, "display: none");
   compositeFrame();
   EXPECT_FALSE(frameElement->contentDocument()->view()->canThrottleRendering());
   EXPECT_TRUE(
       childFrameElement->contentDocument()->view()->canThrottleRendering());
 }
 
 }  // namespace blink