Make infobar background gray

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"
 #include "skia/ext/skia_utils_mac.h"
 #import "third_party/GTM/AppKit/GTMNSColor+Luminance.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/image.h"
+#include "skia/ext/skia_utils_mac.h"
 
 NSString* const kBrowserThemeDidChangeNotification =
     @"BrowserThemeDidChangeNotification";
 
 namespace {
 
 void HSLToHSB(const color_utils::HSL& hsl, CGFloat* h, CGFloat* s, CGFloat* b) {
   SkColor color = color_utils::HSLToSkColor(hsl, 255);  // alpha doesn't matter
   SkScalar hsv[3];
   SkColorToHSV(color, hsv);
@@ skipping 99 matching lines @@
   if (theme_pack_.get() && theme_pack_->GetColor(id, &sk_color)) {
     is_default = false;
   } else {
     is_default = true;
     sk_color = GetDefaultColor(id);
   }
 
   if (is_default && !allow_default)
     return nil;
 
-  NSColor* color = [NSColor
-      colorWithCalibratedRed:SkColorGetR(sk_color)/255.0
-                       green:SkColorGetG(sk_color)/255.0
-                        blue:SkColorGetB(sk_color)/255.0
-                       alpha:SkColorGetA(sk_color)/255.0];
+  NSColor* color = gfx::SkColorToCalibratedNSColor(sk_color);
 
   // We loaded successfully.  Cache the color.
   if (color)
     nscolor_cache_[id] = std::make_pair([color retain], is_default);
 
   return color;
 }
 
 NSColor* ThemeService::GetNSColorTint(int id, bool allow_default) const {
   DCHECK(CalledOnValidThread());
@@ skipping 166 matching lines @@
   }
   nscolor_cache_.clear();
 
   // Free gradients.
   for (NSGradientMap::iterator i = nsgradient_cache_.begin();
        i != nsgradient_cache_.end(); i++) {
     [i->second release];
   }
   nsgradient_cache_.clear();
 }