Navigation transitions (web to native app): Hide/Show transition elements (Blink side)

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 0ab8e673f6c778774b999e2cefa155f4d3780864..df9ce5893ee12019fc1c49547081d1f8bcac5dd0 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -384,7 +384,7 @@ public:
 
     bool isTransitionDocument() const { return m_isTransitionDocument; }
     void setIsTransitionDocument() { m_isTransitionDocument = true; }
-    void hideTransitionElements(const AtomicString& cssSelector);
+    void updateTransitionElementOpacity(const AtomicString& cssSelector, const double opacity);

[Nate Chapin, 2014/11/11 19:35:58]

Is there ever a case where the opacity would be something other than 0 or 1? If
not, should we enforce or assert that fact?

[Zhen Wang, 2014/11/11 22:15:49]

Change it to hide and show transition elements now.

 
     struct TransitionElementData {
         String scope;