Rework MediaQueryMatcher to batch up listener notification

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 9bf2eb2e39b265ec949b830f4135d6e064e215da..2c25ab1e236c4de0598b66aa83b8432a91919bb3 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -640,7 +640,7 @@ SelectorQueryCache& Document::selectorQueryCache()
 MediaQueryMatcher& Document::mediaQueryMatcher()
 {
     if (!m_mediaQueryMatcher)
-        m_mediaQueryMatcher = MediaQueryMatcher::create(this);
+        m_mediaQueryMatcher = MediaQueryMatcher::create(*this);
     return *m_mediaQueryMatcher;
 }
 
@@ -2165,7 +2165,7 @@ void Document::detach(const AttachContext& context)
     m_frame = 0;
 
     if (m_mediaQueryMatcher)
-        m_mediaQueryMatcher->documentDestroyed();
+        m_mediaQueryMatcher->documentDetached();
 
     lifecycleNotifier().notifyDocumentWasDetached();
     m_lifecycle.advanceTo(DocumentLifecycle::Stopped);
@@ -3325,7 +3325,7 @@ void Document::evaluateMediaQueryListIfNeeded()
 void Document::evaluateMediaQueryList()
 {
     if (m_mediaQueryMatcher)
-        m_mediaQueryMatcher->styleResolverChanged();
+        m_mediaQueryMatcher->mediaChanged();

[kenneth.r.christiansen, 2014/04/03 21:54:15]

handleMediaChanged? actually I consider media to mean the media type and not the
whole query, which can contain media features. I don't know if we can find a
better name which covers type and features.

handleMediaPropertiesChanged?

[rune, 2014/06/10 06:17:07]

I was just looking at this in a different context. I thought about naming it
mediaFeaturesChanged().

 }
 
 void Document::notifyResizeForViewportUnits()