Merge 143356

Source/WebCore/page/Settings.cpp

Index: Source/WebCore/page/Settings.cpp
===================================================================
--- Source/WebCore/page/Settings.cpp	(revision 143933)
+++ Source/WebCore/page/Settings.cpp	(working copy)
@@ -41,6 +41,7 @@
 #include "PageCache.h"
 #include "ResourceHandle.h"
 #include "StorageMap.h"
+#include "TextAutosizer.h"
 #include <limits>
 
 using namespace std;
@@ -363,6 +364,11 @@
 void Settings::setTextAutosizingFontScaleFactor(float fontScaleFactor)
 {
     m_textAutosizingFontScaleFactor = fontScaleFactor;
+
+    // FIXME: I wonder if this needs to traverse frames like in WebViewImpl::resize, or whether there is only one document per Settings instance?
+    for (Frame* frame = m_page->mainFrame(); frame; frame = frame->tree()->traverseNext())
+        frame->document()->textAutosizer()->recalculateMultipliers();
+
     m_page->setNeedsRecalcStyleInAllFrames();
 }