Improve some naming

chrome/browser/ui/cocoa/profiles/avatar_button_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/avatar_button_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/themes/theme_service.h"
@@ skipping 102 matching lines @@
 - (void)dealloc;
 - (void)themeDidChangeNotification:(NSNotification*)aNotification;
 @end
 
 @implementation AvatarButtonController
 
 - (id)initWithBrowser:(Browser*)browser {
   if ((self = [super initWithBrowser:browser])) {
     ThemeService* themeService =
         ThemeServiceFactory::GetForProfile(browser->profile());
-    isThemedWindow_ = !themeService->UsingNativeTheme();
+    isThemedWindow_ = !themeService->UsingSystemTheme();
 
     HoverImageButton* hoverButton =
         [[HoverImageButton alloc] initWithFrame:NSZeroRect];
     [hoverButton setDefaultImage:GetImageFromResourceID(
         IDR_AVATAR_MAC_BUTTON_DROPARROW)];
     [hoverButton setHoverImage:GetImageFromResourceID(
         IDR_AVATAR_MAC_BUTTON_DROPARROW_HOVER)];
     [hoverButton setPressedImage:GetImageFromResourceID(
         IDR_AVATAR_MAC_BUTTON_DROPARROW_PRESSED)];
 
@@ skipping 28 matching lines @@
 
 - (void)dealloc {
   [[NSNotificationCenter defaultCenter] removeObserver:self];
   [super dealloc];
 }
 
 - (void)themeDidChangeNotification:(NSNotification*)aNotification {
   // Redraw the button if the window has switched between themed and native.
   ThemeService* themeService =
       ThemeServiceFactory::GetForProfile(browser_->profile());
-  BOOL updatedIsThemedWindow = !themeService->UsingNativeTheme();
+  BOOL updatedIsThemedWindow = !themeService->UsingSystemTheme();
   if (isThemedWindow_ != updatedIsThemedWindow) {
     isThemedWindow_ = updatedIsThemedWindow;
     [[button_ cell] setIsThemedWindow:isThemedWindow_];
     [self updateAvatarButtonAndLayoutParent:YES];
   }
 }
 
 - (void)updateAvatarButtonAndLayoutParent:(BOOL)layoutParent {
   // The button text has a black foreground and a white drop shadow for regular
   // windows, and a light text with a dark drop shadow for guest windows
@@ skipping 39 matching lines @@
   if (layoutParent) {
     // Because the width of the button might have changed, the parent browser
     // frame needs to recalculate the button bounds and redraw it.
     [[BrowserWindowController
         browserWindowControllerForWindow:browser_->window()->GetNativeWindow()]
         layoutSubviews];
   }
 }
 
 @end