Fire visibilityChange event on out-of-process iframes.

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 7f9d5c550cfe56d0f26f919d9bc120bda193ac41..40006ea41041bfd65eaa80d4c52ffdc13ea320b0 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -335,16 +335,16 @@ private:
 
 // WebView ----------------------------------------------------------------
 
-WebView* WebView::create(WebViewClient* client)
+WebView* WebView::create(WebViewClient* client, WebPageVisibilityState visibilityState)
 {
     // Pass the WebViewImpl's self-reference to the caller.
-    return WebViewImpl::create(client);
+    return WebViewImpl::create(client, visibilityState);
 }
 
-WebViewImpl* WebViewImpl::create(WebViewClient* client)
+WebViewImpl* WebViewImpl::create(WebViewClient* client, WebPageVisibilityState visibilityState)
 {
     // Pass the WebViewImpl's self-reference to the caller.
-    return adoptRef(new WebViewImpl(client)).leakRef();
+    return adoptRef(new WebViewImpl(client, visibilityState)).leakRef();
 }
 
 void WebView::setUseExternalPopupMenus(bool useExternalPopupMenus)
@@ -402,7 +402,7 @@ HashSet<WebViewImpl*>& WebViewImpl::allInstances()
     return allInstances;
 }
 
-WebViewImpl::WebViewImpl(WebViewClient* client)
+WebViewImpl::WebViewImpl(WebViewClient* client, WebPageVisibilityState visibilityState)
     : m_client(client)
     , m_spellCheckClient(nullptr)
     , m_chromeClientImpl(ChromeClientImpl::create(this))
@@ -452,6 +452,7 @@ WebViewImpl::WebViewImpl(WebViewClient* client)
     , m_mutator(nullptr)
     , m_scheduler(wrapUnique(Platform::current()->currentThread()->scheduler()->createWebViewScheduler(this).release()))
     , m_lastFrameTimeMonotonic(0)
+    , m_overrideCompositorVisibility(false)
 {
     Page::PageClients pageClients;
     pageClients.chromeClient = m_chromeClientImpl.get();
@@ -470,9 +471,7 @@ WebViewImpl::WebViewImpl(WebViewClient* client)
     provideDedicatedWorkerGlobalScopeProxyProviderTo(*m_page, DedicatedWorkerGlobalScopeProxyProviderImpl::create());
     StorageNamespaceController::provideStorageNamespaceTo(*m_page, &m_storageClientImpl);
 
-    if (m_client) {
-        setVisibilityState(m_client->visibilityState(), true);
-    }
+    setVisibilityState(visibilityState, true);
 
     initializeLayerTreeView();
 
@@ -4422,11 +4421,21 @@ void WebViewImpl::setVisibilityState(WebPageVisibilityState visibilityState,
         m_page->setVisibilityState(static_cast<PageVisibilityState>(static_cast<int>(visibilityState)), isInitialState);
 
     bool visible = visibilityState == WebPageVisibilityStateVisible;
-    if (m_layerTreeView)
+    if (m_layerTreeView && !m_overrideCompositorVisibility)
         m_layerTreeView->setVisible(visible);
     m_scheduler->setPageVisible(visible);
 }
 
+void WebViewImpl::setCompositorVisibility(bool isVisible)
+{
+    if (!isVisible)
+        m_overrideCompositorVisibility = true;
+    else
+        m_overrideCompositorVisibility = false;
+    if (m_layerTreeView)
+        m_layerTreeView->setVisible(isVisible);
+}
+
 void WebViewImpl::pointerLockMouseEvent(const WebInputEvent& event)
 {
     std::unique_ptr<UserGestureIndicator> gestureIndicator;