Remove Navigation Transitions from Blink.

Source/core/css/CSSDefaultStyleSheets.h

Index: Source/core/css/CSSDefaultStyleSheets.h
diff --git a/Source/core/css/CSSDefaultStyleSheets.h b/Source/core/css/CSSDefaultStyleSheets.h
index 388b30288aeac5b3747fd1707216f9d08a7d9a7c..b7c0489b8213ee258bb310af012100736e167462 100644
--- a/Source/core/css/CSSDefaultStyleSheets.h
+++ b/Source/core/css/CSSDefaultStyleSheets.h
@@ -41,7 +41,6 @@ public:
     RuleSet* defaultQuirksStyle() { return m_defaultQuirksStyle.get(); }
     RuleSet* defaultPrintStyle() { return m_defaultPrintStyle.get(); }
     RuleSet* defaultViewSourceStyle();
-    RuleSet* defaultTransitionStyle();
     RuleSet* defaultMobileViewportStyle();
 
     // FIXME: Remove WAP support.
@@ -65,7 +64,6 @@ private:
     OwnPtrWillBeMember<RuleSet> m_defaultPrintStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultViewSourceStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultXHTMLMobileProfileStyle;
-    OwnPtrWillBeMember<RuleSet> m_defaultTransitionStyle;
 
     RefPtrWillBeMember<StyleSheetContents> m_defaultStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_mobileViewportStyleSheet;