Instant: Use only one hidden WebContents per profile.

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright 2012 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.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <cmath>
 #include <numeric>
 
 #include "base/command_line.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"  // IDC_*
 #include "chrome/browser/bookmarks/bookmark_editor.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/instant/instant_controller.h"
 #include "chrome/browser/managed_mode/managed_mode.h"
 #include "chrome/browser/profiles/avatar_menu_model.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_ui_util.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_command_controller.h"
@@ skipping 1921 matching lines @@
 }
 
 - (void)updateBookmarkBarStateForInstantOverlay {
   [toolbarController_ setDividerOpacity:[self toolbarDividerOpacity]];
   [self updateContentOffsets];
   [self updateSubviewZOrder:[self inPresentationMode]];
 }
 
 @end  // @implementation BrowserWindowController
 
-
 @implementation BrowserWindowController(Fullscreen)
 
 - (void)handleLionToggleFullscreen {
   DCHECK(base::mac::IsOSLionOrLater());
   chrome::ExecuteCommand(browser_.get(), IDC_FULLSCREEN);
 }
 
 // On Lion, this method is called by either the Lion fullscreen button or the
 // "Enter Full Screen" menu item.  On Snow Leopard, this function is never
 // called by the UI directly, but it provides the implementation for
@@ skipping 202 matching lines @@
   // visible again.
   NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
   [center addObserver:self
              selector:@selector(tabposeWillClose:)
                  name:NSWindowWillCloseNotification
                object:window];
 }
 
 @end  // @implementation BrowserWindowController(Fullscreen)
 
-
 @implementation BrowserWindowController(WindowType)
 
 - (BOOL)supportsWindowFeature:(int)feature {
   return browser_->SupportsWindowFeature(
       static_cast<Browser::WindowFeature>(feature));
 }
 
 - (BOOL)hasTitleBar {
   return [self supportsWindowFeature:Browser::FEATURE_TITLEBAR];
 }
 
 - (BOOL)hasToolbar {
   return [self supportsWindowFeature:Browser::FEATURE_TOOLBAR];
 }
 
 - (BOOL)hasLocationBar {
   return [self supportsWindowFeature:Browser::FEATURE_LOCATIONBAR];
 }
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)