Revert 127833 - Re-land alexbost's experimental offscreenTabs API.

chrome/browser/extensions/extension_tabs_module.h

Index: chrome/browser/extensions/extension_tabs_module.h
===================================================================
--- chrome/browser/extensions/extension_tabs_module.h	(revision 127860)
+++ chrome/browser/extensions/extension_tabs_module.h	(working copy)
@@ -17,17 +17,13 @@
 #include "googleurl/src/gurl.h"
 
 class BackingStore;
-class Extension;
-class GURL;
 class SkBitmap;
-class TabContentsWrapper;
 namespace base {
 class DictionaryValue;
 }  // namespace base
 namespace content {
 class WebContents;
 }  // namespace content
-
 // Windows
 class GetWindowFunction : public SyncExtensionFunction {
   virtual ~GetWindowFunction() {}
@@ -114,23 +110,17 @@
                           public content::WebContentsObserver {
  public:
   UpdateTabFunction();
-
- protected:
-  virtual ~UpdateTabFunction() {}
-  virtual bool UpdateURLIfPresent(base::DictionaryValue* update_props,
-                                  bool* is_async);
-  virtual void PopulateResult();
-
-  content::WebContents* web_contents_;
-
  private:
+  virtual ~UpdateTabFunction() {}
   virtual bool RunImpl() OVERRIDE;
   virtual void WebContentsDestroyed(content::WebContents* tab) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   void OnExecuteCodeFinished(int request_id,
                              bool success,
                              const std::string& error);
+  void PopulateResult();
 
+  content::WebContents* web_contents_;
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.update")
 };
 class MoveTabsFunction : public SyncExtensionFunction {
@@ -163,7 +153,7 @@
 };
 class CaptureVisibleTabFunction : public AsyncExtensionFunction,
                                   public content::NotificationObserver {
- protected:
+ private:
   enum ImageFormat {
     FORMAT_JPEG,
     FORMAT_PNG
@@ -174,11 +164,10 @@
 
   virtual ~CaptureVisibleTabFunction() {}
   virtual bool RunImpl() OVERRIDE;
-  virtual bool GetTabToCapture(content::WebContents** web_contents,
-                               TabContentsWrapper** wrapper);
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
+  bool CaptureSnapshotFromBackingStore(BackingStore* backing_store);
   void SendResultFromBitmap(const SkBitmap& screen_capture);
 
   content::NotificationRegistrar registrar_;