Refactor most c/b/profiles calls to ProfileInfoCache.

chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm

 // Copyright 2014 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/profiles/profile_chooser_controller.h"
 
 #import <Carbon/Carbon.h>  // kVK_Return.
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/bundle_locations.h"
@@ skipping 1867 matching lines @@
   [container addSubview:disclaimer];
   [container setFrameSize:NSMakeSize(kFixedMenuWidth, yOffset)];
   return container.autorelease();
 }
 
 - (NSView*)createGuestProfileView {
   gfx::Image guestIcon =
       ui::ResourceBundle::GetSharedInstance().GetNativeImageNamed(
           profiles::GetPlaceholderAvatarIconResourceID());
   AvatarMenu::Item guestItem(std::string::npos, /* menu_index, not used */
-                             std::string::npos, /* profile_index, not used */
                              guestIcon);
   guestItem.active = true;
   guestItem.name = base::SysNSStringToUTF16(
       l10n_util::GetNSString(IDS_PROFILES_GUEST_PROFILE_NAME));
 
   return [self createCurrentProfileView:guestItem];
 }
 
 - (NSButton*)createOtherProfileView:(int)itemIndex {
   const AvatarMenu::Item& item = avatarMenu_->GetItemAt(itemIndex);
@@ skipping 508 matching lines @@
 }
 
 - (bool)shouldShowGoIncognito {
   bool incognitoAvailable =
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognitoAvailable && !browser_->profile()->IsGuestSession();
 }
 
 @end