Move protocol registration from WebViewClient to WebFrameClient, part 2/3.

public/web/WebFrameClient.h

Index: public/web/WebFrameClient.h
diff --git a/public/web/WebFrameClient.h b/public/web/WebFrameClient.h
index 328f5aafc22ebce7b0b6e7654a8a5d17d5be107b..8cd3149246537b66696b76b07c3aa15b9e69edd1 100644
--- a/public/web/WebFrameClient.h
+++ b/public/web/WebFrameClient.h
@@ -41,6 +41,7 @@
 #include "WebIconURL.h"
 #include "WebNavigationPolicy.h"
 #include "WebNavigationType.h"
+#include "WebNavigatorContentUtilsClient.h"
 #include "WebSandboxFlags.h"
 #include "WebTextDirection.h"
 #include "public/platform/WebCommon.h"
@@ -646,6 +647,22 @@ public:
     // App Banners ---------------------------------------------------------
     virtual WebAppBannerClient* appBannerClient() { return 0; }
 
+    // Navigator Content Utils  --------------------------------------------
+
+    // Registers a new URL handler for the given protocol.
+    virtual void registerProtocolHandler(const WebString& scheme,
+        const WebURL& url,
+        const WebString& title) { }
+
+    // Unregisters a given URL handler for the given protocol.
+    virtual void unregisterProtocolHandler(const WebString& scheme, const WebURL& url) { }
+
+    // Check if a given URL handler is registered for the given protocol.
+    virtual WebCustomHandlersState isProtocolHandlerRegistered(const WebString& scheme, const WebURL& url)
+    {
+        return WebCustomHandlersNew;
+    }
+
 protected:
     virtual ~WebFrameClient() { }
 };