<webview>: Move back, forward, canGoBack, canGoForward, go from content to chrome

chrome/browser/extensions/api/webview/webview_api.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_WEBVIEW_WEBVIEW_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_WEBVIEW_WEBVIEW_API_H_
 
 #include "chrome/browser/extensions/api/execute_code_function.h"
 
 class WebviewExecuteCodeFunction : public extensions::ExecuteCodeFunction {
  public:
   WebviewExecuteCodeFunction();
 
  protected:
   virtual ~WebviewExecuteCodeFunction();
 
   // Initialize |details_| if it hasn't already been.
   virtual bool Init() OVERRIDE;
   virtual bool ShouldInsertCSS() const OVERRIDE;
   virtual bool CanExecuteScriptOnPage() OVERRIDE;
   virtual extensions::ScriptExecutor* GetScriptExecutor() OVERRIDE;
   virtual bool IsWebView() const OVERRIDE;
 
  private:
   // Contains extension resource built from path of file which is
   // specified in JSON arguments.
   extensions::ExtensionResource resource_;
 
   int guest_instance_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebviewExecuteCodeFunction);
 };
 
 class WebviewExecuteScriptFunction : public WebviewExecuteCodeFunction {
+ public:
+  WebviewExecuteScriptFunction();
+
  protected:
   virtual ~WebviewExecuteScriptFunction() {}
 
   virtual void OnExecuteCodeFinished(const std::string& error,
                                      int32 on_page_id,
                                      const GURL& on_url,
                                      const base::ListValue& result) OVERRIDE;
 
   DECLARE_EXTENSION_FUNCTION("webview.executeScript", WEBVIEW_EXECUTESCRIPT)
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebviewExecuteScriptFunction);
 };
 
 class WebviewInsertCSSFunction : public WebviewExecuteCodeFunction {
+ public:
+  WebviewInsertCSSFunction();
+
  protected:
   virtual ~WebviewInsertCSSFunction() {}
 
   virtual bool ShouldInsertCSS() const OVERRIDE;
 
   DECLARE_EXTENSION_FUNCTION("webview.insertCSS", WEBVIEW_INSERTCSS)
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebviewInsertCSSFunction);
 };
+
+class WebviewGoFunction : public AsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("webview.go", WEBVIEW_GO);
+
+  WebviewGoFunction();
+
+ protected:
+  virtual ~WebviewGoFunction();
+
+  // ExtensionFunction implementation.
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebviewGoFunction);
+};
+
 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEBVIEW_WEBVIEW_API_H_