Added support for Text only zoom...

chrome/browser/tab_contents/tab_contents_delegate.h

 // Copyright (c) 2006-2008 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_TAB_CONTENTS_TAB_CONTENTS_DELEGATE_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/gfx/native_widget_types.h"
 #include "base/gfx/rect.h"
 #include "chrome/common/page_transition_types.h"
+#include "chrome/common/page_zoom.h"
 #include "chrome/common/renderer_preferences.h"
 #include "webkit/glue/context_menu.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class DownloadItem;
 class ExtensionFunctionDispatcher;
 class GURL;
 class HtmlDialogUIDelegate;
 class Profile;
 class RenderViewHost;
@@ skipping 69 matching lines @@
   // Notification that the starredness of the current URL changed.
   virtual void URLStarredChanged(TabContents* source, bool starred) = 0;
 
   // Notification that the target URL has changed
   virtual void UpdateTargetURL(TabContents* source, const GURL& url) = 0;
 
   // Notification that there was a mouse event
   virtual void ContentsMouseEvent(TabContents* source, bool motion) { }
 
   // Request the delegate to change the zoom level of the current tab.
-  virtual void ContentsZoomChange(bool zoom_in) { }
+  virtual void ContentsZoomChange(PageZoom::Function zoom_type) { }
 
   // Check whether this contents is inside a window dedicated to running a web
   // application.
   virtual bool IsApplication() { return false; }
 
   // Detach the given tab and convert it to a "webapp" view.  The tab must be
   // a TabContents with a valid WebApp set.
   virtual void ConvertContentsToApplication(TabContents* source) { }
 
   // Return whether this tab contents should have a URL bar. Only web contents
@@ skipping 89 matching lines @@
 
   // Shows a confirmation UI that the specified |template_url| is to be added as
   // a search engine.
   virtual void ConfirmAddSearchProvider(const TemplateURL* template_url,
                                         Profile* profile) {
   }
 
  protected:
   ~TabContentsDelegate() {}
   RendererPreferences renderer_preferences_;
-
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_DELEGATE_H_