Get rid of extensions dependency from content\browser.

chrome/browser/tabs/tab_strip_model.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/tabs/tab_strip_model.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/command_line.h"
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
 #include "build/build_config.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_tab_helper.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/tabs/tab_strip_model_delegate.h"
 #include "chrome/browser/tabs/tab_strip_model_order_controller.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/tab_contents/navigation_controller.h"
@@ skipping 81 matching lines @@
   InsertTabContentsAt(index, contents,
                       foreground ? (ADD_INHERIT_GROUP | ADD_SELECTED) :
                                    ADD_NONE);
 }
 
 void TabStripModel::InsertTabContentsAt(int index,
                                         TabContentsWrapper* contents,
                                         int add_types) {
   bool foreground = add_types & ADD_SELECTED;
   // Force app tabs to be pinned.
-  bool pin = contents->is_app() || add_types & ADD_PINNED;
+  bool pin =
+      contents->extension_tab_helper()->is_app() || add_types & ADD_PINNED;
   index = ConstrainInsertionIndex(index, pin);
 
   // In tab dragging situations, if the last tab in the window was detached
   // then the user aborted the drag, we will have the |closing_all_| member
   // set (see DetachTabContentsAt) which will mess with our mojo here. We need
   // to clear this bit.
   closing_all_ = false;
 
   // Have to get the selected contents before we monkey with |contents_|
   // otherwise we run into problems when we try to change the selected contents
@@ skipping 407 matching lines @@
   DCHECK(ContainsIndex(index));
   return contents_data_[index]->pinned;
 }
 
 bool TabStripModel::IsMiniTab(int index) const {
   return IsTabPinned(index) || IsAppTab(index);
 }
 
 bool TabStripModel::IsAppTab(int index) const {
   TabContentsWrapper* contents = GetTabContentsAt(index);
-  return contents && contents->is_app();
+  return contents && contents->extension_tab_helper()->is_app();
 }
 
 bool TabStripModel::IsTabBlocked(int index) const {
   return contents_data_[index]->blocked;
 }
 
 int TabStripModel::IndexOfFirstNonMiniTab() const {
   for (size_t i = 0; i < contents_data_.size(); ++i) {
     if (!IsMiniTab(static_cast<int>(i)))
       return static_cast<int>(i);
@@ skipping 431 matching lines @@
       }
       break;
     }
 
     case NotificationType::EXTENSION_UNLOADED: {
       const Extension* extension =
           Details<UnloadedExtensionInfo>(details)->extension;
       // Iterate backwards as we may remove items while iterating.
       for (int i = count() - 1; i >= 0; i--) {
         TabContentsWrapper* contents = GetTabContentsAt(i);
-        if (contents->extension_app() == extension) {
+        if (contents->extension_tab_helper()->extension_app() == extension) {
           // The extension an app tab was created from has been nuked. Delete
           // the TabContents. Deleting a TabContents results in a notification
           // of type TAB_CONTENTS_DESTROYED; we do the necessary cleanup in
           // handling that notification.
 
           InternalCloseTab(contents, i, false);
         }
       }
       break;
     }
@@ skipping 298 matching lines @@
 void TabStripModel::ForgetOpenersAndGroupsReferencing(
     const NavigationController* tab) {
   for (TabContentsDataVector::const_iterator i = contents_data_.begin();
        i != contents_data_.end(); ++i) {
     if ((*i)->group == tab)
       (*i)->group = NULL;
     if ((*i)->opener == tab)
       (*i)->opener = NULL;
   }
 }