Remove UserScript support, which is not used by Chromium

Source/WebKit/chromium/public/WebView.h

 /*
  * Copyright (C) 2009, 2010, 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 55 matching lines @@
 struct WebPoint;
 
 class WebView : public WebWidget {
 public:
     WEBKIT_EXPORT static const double textSizeMultiplierRatio;
     WEBKIT_EXPORT static const double minTextSizeMultiplier;
     WEBKIT_EXPORT static const double maxTextSizeMultiplier;
     WEBKIT_EXPORT static const float minPageScaleFactor;
     WEBKIT_EXPORT static const float maxPageScaleFactor;
 
-    // Controls the time that user scripts injected into the document run.
-    enum UserScriptInjectAt {
-        UserScriptInjectAtDocumentStart,
-        UserScriptInjectAtDocumentEnd
-    };
-
     // Controls which frames user content is injected into.
     enum UserContentInjectIn {
         UserContentInjectInAllFrames,
         UserContentInjectInTopFrameOnly
     };
 
     // Controls which documents user styles are injected into.
     enum UserStyleInjectionTime {
         UserStyleInjectInExistingDocuments,
         UserStyleInjectInSubsequentDocuments
@@ skipping 345 matching lines @@
     virtual void setScrollbarColors(unsigned inactiveColor,
                                     unsigned activeColor,
                                     unsigned trackColor) = 0;
 
     virtual void setSelectionColors(unsigned activeBackgroundColor,
                                     unsigned activeForegroundColor,
                                     unsigned inactiveBackgroundColor,
                                     unsigned inactiveForegroundColor) = 0;
 
     // User scripts --------------------------------------------------------
-    WEBKIT_EXPORT static void addUserScript(const WebString& sourceCode,
-                                            const WebVector<WebString>& patterns,
-                                            UserScriptInjectAt injectAt,
-                                            UserContentInjectIn injectIn);
     WEBKIT_EXPORT static void addUserStyleSheet(const WebString& sourceCode,
                                                 const WebVector<WebString>& patterns,
                                                 UserContentInjectIn injectIn,
                                                 UserStyleInjectionTime injectionTime = UserStyleInjectInSubsequentDocuments);
     WEBKIT_EXPORT static void removeAllUserContent();
 
     // Modal dialog support ------------------------------------------------
 
     // Call these methods before and after running a nested, modal event loop
     // to suspend script callbacks and resource loads.
@@ skipping 46 matching lines @@
 
     // Testing functionality for TestRunner ---------------------------------
 
 protected:
     ~WebView() {}
 };
 
 } // namespace WebKit
 
 #endif