Make render pipeline throttling opt-in

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

Index: third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp b/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
index 09dd04d20f69f950dafe23dd5592a70bb86a7c5d..34d1f0a54bea09b9afa1882ebf9ed985f8d12077 100644
--- a/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
+++ b/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
@@ -264,9 +264,9 @@ TEST_F(FrameThrottlingTest, UnthrottlingTriggersRepaint)
     // Move the frame offscreen to throttle it.
     auto* frameElement = toHTMLIFrameElement(document().getElementById("frame"));
     frameElement->setAttribute(styleAttr, "transform: translateY(480px)");
-    EXPECT_FALSE(frameElement->contentDocument()->view()->shouldThrottleRendering());
+    EXPECT_FALSE(frameElement->contentDocument()->view()->canThrottleRendering());
     compositeFrame();
-    EXPECT_TRUE(frameElement->contentDocument()->view()->shouldThrottleRendering());
+    EXPECT_TRUE(frameElement->contentDocument()->view()->canThrottleRendering());
 
     // Scroll down to unthrottle the frame. The first frame we composite after
     // scrolling won't contain the frame yet, but will schedule another repaint.
@@ -292,9 +292,9 @@ TEST_F(FrameThrottlingTest, ChangeStyleInThrottledFrame)
     // Move the frame offscreen to throttle it.
     auto* frameElement = toHTMLIFrameElement(document().getElementById("frame"));
     frameElement->setAttribute(styleAttr, "transform: translateY(480px)");
-    EXPECT_FALSE(frameElement->contentDocument()->view()->shouldThrottleRendering());
+    EXPECT_FALSE(frameElement->contentDocument()->view()->canThrottleRendering());
     compositeFrame();
-    EXPECT_TRUE(frameElement->contentDocument()->view()->shouldThrottleRendering());
+    EXPECT_TRUE(frameElement->contentDocument()->view()->canThrottleRendering());
 
     // Change the background color of the frame's contents from red to green.
     frameElement->contentDocument()->body()->setAttribute(styleAttr, "background: green");
@@ -338,7 +338,7 @@ TEST(RemoteFrameThrottlingTest, ThrottledLocalRoot)
     frameView->frame().securityContext()->setSecurityOrigin(SecurityOrigin::createUnique());
     frameView->updateAllLifecyclePhases();
     testing::runPendingTasks();
-    EXPECT_TRUE(frameView->shouldThrottleRendering());
+    EXPECT_TRUE(frameView->canThrottleRendering());
 
     Document* frameDocument = frameView->frame().document();
     EXPECT_EQ(DocumentLifecycle::PaintClean, frameDocument->lifecycle().state());
@@ -350,6 +350,7 @@ TEST(RemoteFrameThrottlingTest, ThrottledLocalRoot)
 
     // Update the lifecycle again. The frame's lifecycle should not advance
     // because of throttling even though it is the local root.
+    DocumentLifecycle::AllowThrottlingScope throttlingScope(frameDocument->lifecycle());
     frameView->updateAllLifecyclePhases();
     testing::runPendingTasks();
     EXPECT_EQ(DocumentLifecycle::VisualUpdatePending, frameDocument->lifecycle().state());