Complete migration to InspectorFrontendHost.sendMessageToFrontendHost.

public/web/WebDevToolsFrontendClient.h

Index: public/web/WebDevToolsFrontendClient.h
diff --git a/public/web/WebDevToolsFrontendClient.h b/public/web/WebDevToolsFrontendClient.h
index d72987b50ee9ffb3de3da9437c234d47b7866d28..9e7020fd4aa0105dd1e4a5ac9e1294b8574c24f3 100644
--- a/public/web/WebDevToolsFrontendClient.h
+++ b/public/web/WebDevToolsFrontendClient.h
@@ -42,26 +42,8 @@ public:
     WebDevToolsFrontendClient() { }
 
     virtual void sendMessageToBackend(const WebString&) { }
-    virtual void sendMessageToFrontendHost(const WebString&) { }
-
-    virtual void activateWindow() { }
-    virtual void changeAttachedWindowHeight(unsigned height) { }
-    virtual void closeWindow() { }
-    virtual void requestDockWindow() { }
-    virtual void requestUndockWindow() { }
-    virtual void requestSetDockSide(const WebString& side) { }
-    virtual void moveWindowBy(const WebFloatPoint&) { }
-    virtual void openInNewTab(const WebString& side) { }
-    virtual void save(const WebString& url, const WebString& content, bool saveAs) { }
-    virtual void append(const WebString& url, const WebString& content) { }
 
-    virtual void requestFileSystems() { }
-    virtual void addFileSystem() { }
-    virtual void removeFileSystem(const WebString& fileSystemPath) { }
-
-    virtual void indexPath(int requestId, const WebString& fileSystemPath) { }
-    virtual void stopIndexing(int requestId) { }
-    virtual void searchInPath(int requestId, const WebString& fileSystemPath, const WebString& query) { }
+    virtual void sendMessageToFrontendHost(const WebString&) { }
 
     virtual bool isUnderTest() { return false; }