cocoa browser: remove remaining non-MD code

chrome/browser/themes/theme_service_mac.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.
 
 #include "chrome/browser/themes/theme_service.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #include "chrome/browser/themes/browser_theme_pack.h"
@@ skipping 238 matching lines @@
   // Check to see if we already have the gradient in the cache.
   NSGradientMap::const_iterator nsgradient_iter = nsgradient_cache_.find(id);
   if (nsgradient_iter != nsgradient_cache_.end())
     return nsgradient_iter->second;
 
   NSGradient* gradient = nil;
 
   // Note that we are not leaking when we assign a retained object to
   // |gradient|; in all cases we cache it before we return.
   switch (id) {
-    case Properties::GRADIENT_FRAME_INCOGNITO:
-    case Properties::GRADIENT_FRAME_INCOGNITO_INACTIVE: {
-      // TODO(avi): can we simplify this?
-      BOOL active = id == Properties::GRADIENT_FRAME_INCOGNITO;
-      NSColor* base_color = [NSColor colorWithCalibratedRed:83/255.0
-                                                      green:108.0/255.0
-                                                       blue:140/255.0
-                                                      alpha:1.0];
-
-      NSColor *start_color =
-          [base_color gtm_colorAdjustedFor:GTMColorationBaseMidtone
-                                     faded:!active];
-      NSColor *end_color =
-          [base_color gtm_colorAdjustedFor:GTMColorationBaseShadow
-                                     faded:!active];
-
-      if (!active) {
-        start_color = [start_color gtm_colorByAdjustingLuminance:0.1
-                                                      saturation:0.5];
-        end_color = [end_color gtm_colorByAdjustingLuminance:0.1
-                                                  saturation:0.5];
-      }
-
-      gradient = [[NSGradient alloc] initWithStartingColor:start_color
-                                               endingColor:end_color];
-      break;
-    }
-
     case Properties::GRADIENT_TOOLBAR:
     case Properties::GRADIENT_TOOLBAR_INACTIVE: {
       NSColor* base_color = [NSColor colorWithCalibratedWhite:0.2 alpha:1.0];
       BOOL faded = (id == Properties::GRADIENT_TOOLBAR_INACTIVE ) ||
                    (id == Properties::GRADIENT_TOOLBAR_BUTTON_INACTIVE);
       NSColor* start_color =
           [base_color gtm_colorAdjustedFor:GTMColorationLightHighlight
                                      faded:faded];
       NSColor* mid_color =
           [base_color gtm_colorAdjustedFor:GTMColorationLightMidtone
@@ skipping 117 matching lines @@
 
 bool ThemeService::BrowserThemeProvider::ShouldIncreaseContrast() const {
   NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
   if ([workspace
           respondsToSelector:@selector(
                                  accessibilityDisplayShouldIncreaseContrast)]) {
     return workspace.accessibilityDisplayShouldIncreaseContrast == YES;
   }
   return false;
 }