Add zoom extension API

chrome/browser/extensions/extension_tabs_module.h

 // Copyright (c) 2010 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_EXTENSION_TABS_MODULE_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TABS_MODULE_H__
 #pragma once
 
 #include <string>
 
@@ skipping 108 matching lines @@
 class MoveTabFunction : public SyncExtensionFunction {
   ~MoveTabFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.move")
 };
 class RemoveTabFunction : public SyncExtensionFunction {
   ~RemoveTabFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.remove")
 };
+class SetZoomPercentTabFunction : public AsyncExtensionFunction,
+                                  public NotificationObserver {
+ private:
+  ~SetZoomPercentTabFunction() {}
+  virtual bool RunImpl();
+
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+  NotificationRegistrar registrar_;
+  int tab_id_;
+  int request_id_;
+  DECLARE_EXTENSION_FUNCTION_NAME("tabs.setZoomPercent")
+};
+class GetZoomPercentTabFunction : public SyncExtensionFunction {
+  ~GetZoomPercentTabFunction() {}
+  virtual bool RunImpl();
+  DECLARE_EXTENSION_FUNCTION_NAME("tabs.getZoomPercent");
+};
+
 class DetectTabLanguageFunction : public AsyncExtensionFunction,
                                   public NotificationObserver {
  private:
   ~DetectTabLanguageFunction() {}
   virtual bool RunImpl();
 
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
   void GotLanguage(const std::string& language);
@@ skipping 24 matching lines @@
   // The format (JPEG vs PNG) of the resulting image.  Set in RunImpl().
   ImageFormat image_format_;
 
   // Quality setting to use when encoding jpegs.  Set in RunImpl().
   int image_quality_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.captureVisibleTab")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TABS_MODULE_H__