cocoa browser: remove remaining non-MD code

chrome/browser/ui/cocoa/new_tab_button.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/new_tab_button.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/sdk_forward_declarations.h"
 #import "chrome/browser/ui/cocoa/image_button_cell.h"
 #include "chrome/browser/ui/cocoa/l10n_util.h"
@@ skipping 16 matching lines @@
 
   const NSSize newTabButtonImageSize = { 34, 18 };
 
 const CGFloat k7PercentAlpha = 0.07;
 const CGFloat k8PercentAlpha = 0.08;
 const CGFloat k10PercentAlpha = 0.1;
 const CGFloat k20PercentAlpha = 0.2;
 const CGFloat k25PercentAlpha = 0.25;
 
 NSImage* GetMaskImageFromCell(NewTabButtonCell* aCell) {
-  if (!ui::MaterialDesignController::IsModeMaterial()) {
-    ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-    return bundle.GetNativeImageNamed(IDR_NEWTAB_BUTTON_MASK).ToNSImage();
-  }
   return [aCell imageForState:image_button_cell::kDefaultState view:nil];
 }
 
 // Creates an NSImage with size |size| and bitmap image representations for both
 // 1x and 2x scale factors. |drawingHandler| is called once for every scale
 // factor.  This is similar to -[NSImage imageWithSize:flipped:drawingHandler:],
 // but this function always evaluates drawingHandler eagerly, and it works on
 // 10.6 and 10.7.
 NSImage* CreateImageWithSize(NSSize size,
                              void (^drawingHandler)(NSSize)) {
@@ skipping 195 matching lines @@
     [self setImages];
   }
 }
 
 - (void)setImages {
   const ui::ThemeProvider* theme = [[self window] themeProvider];
   if (!theme) {
     return;
   }
 
-  // The old way of doing things.
-  if (!ui::MaterialDesignController::IsModeMaterial()) {
-    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-    NSImage* mask = rb.GetNativeImageNamed(IDR_NEWTAB_BUTTON_MASK).ToNSImage();
-    NSImage* normal = rb.GetNativeImageNamed(IDR_NEWTAB_BUTTON).ToNSImage();
-    NSImage* hover = rb.GetNativeImageNamed(IDR_NEWTAB_BUTTON_H).ToNSImage();
-    NSImage* pressed = rb.GetNativeImageNamed(IDR_NEWTAB_BUTTON_P).ToNSImage();
-
-    NSImage* foreground = ApplyMask(
-        theme->GetNSImageNamed(IDR_THEME_TAB_BACKGROUND), mask);
-
-    [[self cell] setImage:Overlay(foreground, normal, 1.0)
-                    forButtonState:image_button_cell::kDefaultState];
-    [[self cell] setImage:Overlay(foreground, hover, 1.0)
-                    forButtonState:image_button_cell::kHoverState];
-    [[self cell] setImage:Overlay(foreground, pressed, 1.0)
-                    forButtonState:image_button_cell::kPressedState];
-
-    // IDR_THEME_TAB_BACKGROUND_INACTIVE is only used with the default theme.
-    if (theme->UsingSystemTheme()) {
-      const CGFloat alpha = tabs::kImageNoFocusAlpha;
-      NSImage* background = ApplyMask(
-          theme->GetNSImageNamed(IDR_THEME_TAB_BACKGROUND_INACTIVE), mask);
-      [[self cell] setImage:Overlay(background, normal, alpha)
-                      forButtonState:
-                          image_button_cell::kDefaultStateBackground];
-      [[self cell] setImage:Overlay(background, hover, alpha)
-                      forButtonState:image_button_cell::kHoverStateBackground];
-    } else {
-      [[self cell] setImage:nil
-                      forButtonState:
-                          image_button_cell::kDefaultStateBackground];
-      [[self cell] setImage:nil
-                      forButtonState:image_button_cell::kHoverStateBackground];
-    }
-    return;
-  }
-
   NSImage* mask = [self imageWithFillColor:[NSColor whiteColor]];
   NSImage* normal =
       [self imageForState:image_button_cell::kDefaultState theme:theme];
   NSImage* hover =
       [self imageForState:image_button_cell::kHoverState theme:theme];
   NSImage* pressed =
       [self imageForState:image_button_cell::kPressedState theme:theme];
   NSImage* normalBackground = nil;
   NSImage* hoverBackground = nil;
 
@@ skipping 231 matching lines @@
   [fillColor set];
   CGContextRef context = static_cast<CGContextRef>(
       [[NSGraphicsContext currentContext] graphicsPort]);
   CGFloat lineWidth = LineWidthFromContext(context);
   [[NewTabButton newTabButtonBezierPathWithLineWidth:lineWidth] fill];
   [image unlockFocus];
   return image;
 }
 
 @end