Preparation for enabling slimming paint synchronized painting

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 "config.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/frame/FrameView.h"
 #include "core/html/HTMLIFrameElement.h"
@@ skipping 134 matching lines @@
     loadURL("https://example.com/");
     mainResource.complete("<iframe sandbox id=frame></iframe>");
 
     auto* frameElement = toHTMLIFrameElement(document().getElementById("frame"));
     auto* frameDocument = frameElement->contentDocument();
 
     // Enable throttling for the child frame.
     frameElement->setAttribute(styleAttr, "transform: translateY(480px)");
     compositeFrame();
     EXPECT_TRUE(frameDocument->view()->canThrottleRendering());
-    EXPECT_EQ(DocumentLifecycle::PaintInvalidationClean, frameDocument->lifecycle().state());
+    if (RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled())
+        EXPECT_EQ(DocumentLifecycle::PaintClean, frameDocument->lifecycle().state());
+    else
+        EXPECT_EQ(DocumentLifecycle::PaintInvalidationClean, frameDocument->lifecycle().state());
 
     // Mutating the throttled frame followed by a beginFrame will not result in
     // a complete lifecycle update.
     frameElement->setAttribute(widthAttr, "50");
     compositeFrame();
     EXPECT_EQ(DocumentLifecycle::StyleClean, frameDocument->lifecycle().state());
 
     // A hit test will force a complete lifecycle update.
     webView().hitTestResultAt(WebPoint(0, 0));
     EXPECT_EQ(DocumentLifecycle::CompositingClean, frameDocument->lifecycle().state());
@@ skipping 78 matching lines @@
     // Change the size of a div in the throttled frame.
     auto* divElement = frameElement->contentDocument()->getElementById("div");
     divElement->setAttribute(styleAttr, "width: 50px");
 
     // Querying the width of the div should do a synchronous layout update even
     // though the frame is being throttled.
     EXPECT_EQ(50, divElement->clientWidth());
 }
 
 } // namespace blink