Implement rough new dialog style.

ui/native_theme/native_theme_aura.cc

 // Copyright (c) 2012 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 "ui/native_theme/native_theme_aura.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/skbitmap_operations.h"
 #include "ui/native_theme/common_theme.h"
 
 namespace {
 
 const SkColor kMenuBackgroundColor = SK_ColorWHITE;
 
 // Theme colors returned by GetSystemColor().
 const SkColor kInvalidColorIdColor = SkColorSetRGB(255, 0, 128);
 // Windows:
 const SkColor kWindowBackgroundColor = SK_ColorWHITE;
+// Dialogs:
+const SkColor kDialogBackgroundColor = SkColorSetRGB(251, 251, 251);
 // FocusableBorder:
 const SkColor kFocusedBorderColor = SkColorSetRGB(0x4D, 0x90, 0xFE);
 const SkColor kUnfocusedBorderColor = SkColorSetRGB(0xD9, 0xD9, 0xD9);
 // TextButton:
 const SkColor kTextButtonBackgroundColor = SkColorSetRGB(0xDE, 0xDE, 0xDE);
 const SkColor kTextButtonEnabledColor = SkColorSetRGB(0x22, 0x22, 0x22);
 const SkColor kTextButtonDisabledColor = SkColorSetRGB(0x99, 0x99, 0x99);
 const SkColor kTextButtonHighlightColor = SkColorSetRGB(0, 0, 0);
 const SkColor kTextButtonHoverColor = kTextButtonEnabledColor;
 // MenuItem:
@@ skipping 48 matching lines @@
     return color;
   }
 
   switch (color_id) {
     // Windows
     case kColorId_WindowBackground:
       return kWindowBackgroundColor;
 
     // Dialogs
     case kColorId_DialogBackground:
-      return kWindowBackgroundColor;
+      return kDialogBackgroundColor;
 
     // FocusableBorder
     case kColorId_FocusedBorderColor:
       return kFocusedBorderColor;
     case kColorId_UnfocusedBorderColor:
       return kUnfocusedBorderColor;
 
     // TextButton
     case kColorId_TextButtonBackgroundColor:
       return kTextButtonBackgroundColor;
@@ skipping 199 matching lines @@
       DrawTiledImage(canvas, *center,
                      0, 0, 1.0, 1.0,
                      rect.x() + left->width(), rect.y(),
                      rect.width() - left->width() - right->width(),
                      center->height());
     }
   }
 }
 
 }  // namespace ui