Update Chrome to use new context notification APIs from WebKit.

content/renderer/mock_content_renderer_client.cc

Index: content/renderer/mock_content_renderer_client.cc
diff --git a/content/renderer/mock_content_renderer_client.cc b/content/renderer/mock_content_renderer_client.cc
index 930beff0c0b22263697697b990671d4d3df4ca68..ed2b8b093a10d9423a2603c85e73100a3fb677b1 100644
--- a/content/renderer/mock_content_renderer_client.cc
+++ b/content/renderer/mock_content_renderer_client.cc
@@ -74,15 +74,11 @@ bool MockContentRendererClient::ShouldPumpEventsDuringCookieMessage() {
 }
 
 void MockContentRendererClient::DidCreateScriptContext(
-    WebKit::WebFrame* frame) {
+    WebKit::WebFrame* frame, v8::Handle<v8::Context> context, int world_id) {
 }
 
-void MockContentRendererClient::DidDestroyScriptContext(
-    WebKit::WebFrame* frame) {
-}
-
-void MockContentRendererClient::DidCreateIsolatedScriptContext(
-    WebKit::WebFrame* frame, int world_id, v8::Handle<v8::Context> context) {
+void MockContentRendererClient::WillReleaseScriptContext(
+    WebKit::WebFrame* frame, v8::Handle<v8::Context> context, int world_id) {
 }
 
 unsigned long long MockContentRendererClient::VisitedLinkHash(