TEST(RemoteFrameThrottlingTest, ThrottledLocalRoot) { FrameTestHelpers::TestWebViewClient viewClient; WebViewImpl* webView = WebViewImpl::create(&viewClient); webView->resize(WebSize(640, 480)); // Create a remote root frame with a local child frame. FrameTestHelpers::TestWebRemoteFrameClient remoteClient; webView->setMainFrame(remoteClient.frame()); remoteClient.frame()->setReplicatedOrigin(WebSecurityOrigin::createUnique()); WebFrameOwnerProperties properties; WebRemoteFrame* rootFrame = webView->mainFrame()->toWebRemoteFrame(); WebLocalFrame* localFrame = FrameTestHelpers::createLocalChild(rootFrame); WebString baseURL("http://internal.test/"); URLTestHelpers::registerMockedURLFromBaseURL(baseURL, "simple_div.html"); FrameTestHelpers::loadFrame(localFrame, baseURL.utf8() + "simple_div.html"); FrameView* frameView = toWebLocalFrameImpl(localFrame)->frameView(); EXPECT_TRUE(frameView->frame().isLocalRoot()); // Enable throttling for the child frame. frameView->setFrameRect(IntRect(0, 480, frameView->width(), frameView->height())); frameView->frame().securityContext()->setSecurityOrigin(SecurityOrigin::createUnique()); frameView->updateAllLifecyclePhases(); testing::runPendingTasks(); EXPECT_TRUE(frameView->canThrottleRendering()); Document* frameDocument = frameView->frame().document(); EXPECT_EQ(DocumentLifecycle::PaintClean, frameDocument->lifecycle().state()); // Mutate the local child frame contents. auto* divElement = frameDocument->getElementById("div"); divElement->setAttribute(styleAttr, "width: 50px"); EXPECT_EQ(DocumentLifecycle::VisualUpdatePending, frameDocument->lifecycle().state()); // 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()); webView->close(); }