Remove code that was only used by navigator.connect.

third_party/WebKit/public/platform/WebMessagePortChannelClient.h

Index: third_party/WebKit/public/platform/WebMessagePortChannelClient.h
diff --git a/third_party/WebKit/public/platform/WebMessagePortChannelClient.h b/third_party/WebKit/public/platform/WebMessagePortChannelClient.h
index 357d3843747860c448b4546f41324a7b4a5433d2..ca308d1b477591460f6b7990b7c7b93c8a99d671 100644
--- a/third_party/WebKit/public/platform/WebMessagePortChannelClient.h
+++ b/third_party/WebKit/public/platform/WebMessagePortChannelClient.h
@@ -32,7 +32,6 @@
 #define WebMessagePortChannelClient_h
 
 #include "WebCommon.h"
-#include <v8.h>
 
 namespace blink {
 
@@ -46,20 +45,6 @@ public:
     // on any thread.
     virtual void messageAvailable() = 0;
 
-    // Returns the V8 isolate this message port lives in.
-    // Do not rely on this API, it is only exposed so content code can convert
-    // messages to base::Value, and will be removed when this conversion can be
-    // integrated into blink itself.
-    virtual v8::Isolate* scriptIsolate() = 0;
-
-    // Returns a V8 context messages sent to this port can be (de)serialized in.
-    // Can return null if no valid V8 context could be determined.
-    // Do not rely on this API, it is only exposed so content code can convert
-    // messages to base::Value, and will be removed when this conversion can be
-    // integrated into blink itself.
-    // FIXME: Remove this method when no longer needed (http://crbug.com/461906)
-    virtual v8::Local<v8::Context> scriptContextForMessageConversion() = 0;
-
 protected:
     ~WebMessagePortChannelClient() { }
 };