Call media query change listeners asynchronously.

Source/core/dom/ScriptedAnimationController.cpp

Index: Source/core/dom/ScriptedAnimationController.cpp
diff --git a/Source/core/dom/ScriptedAnimationController.cpp b/Source/core/dom/ScriptedAnimationController.cpp
index 3f5f9b9e41023d58b8ec291289ac85009afd492b..f8f6b3b9414a4367be2921e6966a2e2b382d8bdb 100644
--- a/Source/core/dom/ScriptedAnimationController.cpp
+++ b/Source/core/dom/ScriptedAnimationController.cpp
@@ -26,6 +26,7 @@
 #include "config.h"
 #include "core/dom/ScriptedAnimationController.h"
 
+#include "core/css/MediaQueryListListener.h"
 #include "core/dom/Document.h"
 #include "core/dom/RequestAnimationFrameCallback.h"
 #include "core/events/Event.h"
@@ -57,6 +58,7 @@ void ScriptedAnimationController::trace(Visitor* visitor)
 {
     visitor->trace(m_document);
     visitor->trace(m_eventQueue);
+    visitor->trace(m_mediaQueryListListeners);
 #if ENABLE(OILPAN)
     visitor->trace(m_perFrameEvents);
 #endif
@@ -169,9 +171,20 @@ void ScriptedAnimationController::executeCallbacks(double monotonicTimeNow)
     m_callbacksToInvoke.clear();
 }
 
+void ScriptedAnimationController::callMediaQueryListListeners()
+{
+    MediaQueryListListeners listeners;
+    listeners.swap(m_mediaQueryListListeners);
+
+    for (MediaQueryListListeners::const_iterator it = listeners.begin(), end = listeners.end();
+        it != end; ++it) {
+        (*it)->call();
+    }
+}
+
 void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTimeNow)
 {
-    if (!m_callbacks.size() && !m_eventQueue.size())
+    if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (m_suspendCount)
@@ -179,6 +192,7 @@ void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTime
 
     RefPtrWillBeRawPtr<ScriptedAnimationController> protect(this);
 
+    callMediaQueryListListeners();
     dispatchEvents();
     executeCallbacks(monotonicTimeNow);
 
@@ -199,6 +213,14 @@ void ScriptedAnimationController::enqueuePerFrameEvent(PassRefPtrWillBeRawPtr<Ev
     enqueueEvent(event);
 }
 
+void ScriptedAnimationController::enqueueMediaQueryChangeListeners(WillBeHeapVector<RefPtrWillBeMember<MediaQueryListListener> >& listeners)
+{
+    for (size_t i = 0; i < listeners.size(); ++i) {
+        m_mediaQueryListListeners.add(listeners[i]);
+    }
+    scheduleAnimationIfNeeded();
+}
+
 void ScriptedAnimationController::scheduleAnimationIfNeeded()
 {
     if (!m_document)
@@ -207,7 +229,7 @@ void ScriptedAnimationController::scheduleAnimationIfNeeded()
     if (m_suspendCount)
         return;
 
-    if (!m_callbacks.size() && !m_eventQueue.size())
+    if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (FrameView* frameView = m_document->view())