Merge the Sky Engine changes from the SkyDart branch

sky/engine/public/web/WebFrameClient.h

Index: sky/engine/public/web/WebFrameClient.h
diff --git a/sky/engine/public/web/WebFrameClient.h b/sky/engine/public/web/WebFrameClient.h
index 6f4f12b5ebb64aeba05f6883a9f6e74841e6415b..5954d972fd99402a66064451025ba90ed733f2f3 100644
--- a/sky/engine/public/web/WebFrameClient.h
+++ b/sky/engine/public/web/WebFrameClient.h
@@ -39,7 +39,8 @@
 #include "sky/engine/public/web/WebNavigationPolicy.h"
 #include "sky/engine/public/web/WebNavigationType.h"
 #include "sky/engine/public/web/WebTextDirection.h"
-#include "v8/include/v8.h"
+
+typedef struct _Dart_Isolate* Dart_Isolate;
 
 namespace mojo {
 class View;
@@ -86,6 +87,7 @@ public:
     // Called when a watched CSS selector matches or stops matching.
     virtual void didMatchCSS(WebLocalFrame*, const WebVector<WebString>& newlyMatchingSelectors, const WebVector<WebString>& stoppedMatchingSelectors) { }
 
+    virtual void didCreateIsolate(WebLocalFrame*, Dart_Isolate isolate) {}
 
     // Console messages ----------------------------------------------------
 
@@ -196,16 +198,6 @@ public:
     virtual void didLoadResourceFromMemoryCache(
         WebLocalFrame*, const WebURLRequest&, const WebURLResponse&) { }
 
-    // Script notifications ------------------------------------------------
-
-    // Notifies that a new script context has been created for this frame.
-    // This is similar to didClearWindowObject but only called once per
-    // frame context.
-    virtual void didCreateScriptContext(WebLocalFrame*, v8::Handle<v8::Context>) { }
-
-    // WebKit is about to release its reference to a v8 context for a frame.
-    virtual void willReleaseScriptContext(WebLocalFrame*, v8::Handle<v8::Context>) { }
-
 
     // Geometry notifications ----------------------------------------------