Make aura_demo work on Mac

chrome/app/theme/theme_resources.grd

 <?xml version="1.0" encoding="utf-8"?>
 <!-- This grd file contains images that are pre-scaled for device scale
      factors. The image returned by |base::ResourceBundle::GetImageNamed|
      will contain multiple |gfx:ImageSkiaReps| for each scale factors. The
      |fallback_to_low_resolution| attribute controls behavior when
      an image file is missing for target scale factor. If true, chrome
      will automatically scale the 1x image to the target scale factor.
      If false, build will fail due to missing resources. This is
      currently set to true for all resources, but the default will
      become false in near future.
@@ skipping 613 matching lines @@
         <if expr="not pp_ifdef('use_ash')">
           <structure type="chrome_scaled_image" name="IDR_OTR_ICON" file="common/otr_icon.png" />
         </if>
         <if expr="pp_ifdef('use_ash')">
           <structure type="chrome_scaled_image" name="IDR_OTR_ICON" file="cros/otr_icon.png" />
           <if expr="is_win">
             <structure type="chrome_scaled_image" name="IDR_OTR_ICON_WIN" file="common/otr_icon.png" />
           </if>
         </if>
       </if>
-      <if expr="is_macosx or is_ios">
+      <if expr="(is_macosx or is_ios) and not pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_OTR_ICON" file="mac/otr_icon.png" />
       </if>
       <if expr="context.startswith('default_')">
         <structure type="chrome_scaled_image" name="IDR_OTR_ICON_FULLSCREEN" file="common/otr_icon.png" />
       </if>
       <if expr="not context.startswith('default_')">
         <structure type="chrome_scaled_image" name="IDR_OTR_ICON_FULLSCREEN" file="otr_icon_fullscreen.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_OVERLAY_DROP_SHADOW" file="common/overlay_drop_shadow.png" />
       <structure type="chrome_scaled_image" name="IDR_PAGEINFO_BAD" file="pageinfo_bad.png" />
@@ skipping 292 matching lines @@
       <if expr="not pp_ifdef('toolkit_views') and not is_macosx and not is_ios">
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_CENTER" file="tab_active_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_LEFT" file="tab_active_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_RIGHT" file="tab_active_right.png" />
       </if>
       <if expr="pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_CENTER" file="common/tab_active_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_LEFT" file="common/tab_active_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_RIGHT" file="common/tab_active_right.png" />
       </if>
-      <if expr="is_macosx or is_ios">
+      <if expr="(is_macosx or is_ios) and not pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_CENTER" file="mac/tab_active_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_LEFT" file="mac/tab_active_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ACTIVE_RIGHT" file="mac/tab_active_right.png" />
         <structure type="chrome_scaled_image" name="IDR_SWIPE_BACK" file="back_large.png" />
         <structure type="chrome_scaled_image" name="IDR_SWIPE_FORWARD" file="forward_large.png" />
         <structure type="chrome_scaled_image" name="IDR_TABPOSE_CLOSE" file="mac/tabpose_close.png" />
       </if>
       <!-- Note: Tab close buttons are not traditional buttons.  Tab close buttons
            fill a background with a color from the theme, tile IDR_CLOSE_1 over it,
            then apply IDR_CLOSE_1_MASK.  See chrome/browser/ui/views/tabs/tab.cc -->
       <if expr="not pp_ifdef('toolkit_views') and not is_macosx and not is_ios">
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_LEFT" file="tab_alpha_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_RIGHT" file="tab_alpha_right.png" />
       </if>
       <if expr="pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_LEFT" file="common/tab_alpha_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_RIGHT" file="common/tab_alpha_right.png" />
       </if>
-      <if expr="is_macosx or is_ios">
+      <if expr="(is_macosx or is_ios) and not pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_LEFT" file="mac/tab_alpha_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_RIGHT" file="mac/tab_alpha_right.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_CLOSE_1" file="common/close_1.png" />
       <structure type="chrome_scaled_image" name="IDR_CLOSE_1_H" file="common/close_1_hover.png" />
       <structure type="chrome_scaled_image" name="IDR_CLOSE_1_MASK" file="common/close_1_mask.png" />
       <structure type="chrome_scaled_image" name="IDR_CLOSE_1_P" file="common/close_1_pressed.png" />
       <structure type="chrome_scaled_image" name="IDR_TAB_AUDIO_INDICATOR" file="common/tab_audio_indicator.png" />
       <structure type="chrome_scaled_image" name="IDR_TAB_CAPTURE_INDICATOR" file="common/tab_capture_indicator.png" />
       <structure type="chrome_scaled_image" name="IDR_TAB_DROP_DOWN" file="tab_drop_down.png" />
       <structure type="chrome_scaled_image" name="IDR_TAB_DROP_UP" file="tab_drop_up.png" />
       <if expr="not pp_ifdef('toolkit_views') and not is_macosx and not is_ios">
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_CENTER" file="tab_inactive_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_LEFT" file="tab_inactive_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_RIGHT" file="tab_inactive_right.png" />
       </if>
       <if expr="pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_CENTER" file="common/tab_inactive_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_LEFT" file="common/tab_inactive_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_RIGHT" file="common/tab_inactive_right.png" />
       </if>
-      <if expr="is_macosx or is_ios">
+      <if expr="(is_macosx or is_ios) and not pp_ifdef('toolkit_views')">
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_CENTER" file="mac/tab_inactive_center.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_LEFT" file="mac/tab_inactive_left.png" />
         <structure type="chrome_scaled_image" name="IDR_TAB_INACTIVE_RIGHT" file="mac/tab_inactive_right.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_TAB_RECORDING_INDICATOR" file="common/tab_recording_indicator.png" />
       <structure type="chrome_scaled_image" name="IDR_TABLET_FAVICON" file="common/favicon_tablet.png" />
       <if expr="pp_ifdef('chromeos')">
         <structure type="chrome_scaled_image" name="IDR_TECHNICAL_ERROR" file="cros/technical_error.png" />
       </if>
       <if expr="not pp_ifdef('_google_chrome')">
@@ skipping 153 matching lines @@
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_EMAIL" file="common/mail.png" />
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_EMAIL_HOVER" file="common/mail_hover.png" />
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_EMAIL_PRESSED" file="common/mail_pressed.png" />
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_CHAT" file="common/chat.png" />
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_CHAT_HOVER" file="common/chat_hover.png" />
       <structure type="chrome_scaled_image" name="IDR_PEOPLE_SEARCH_ACTION_CHAT_PRESSED" file="common/chat_pressed.png" />
 
     </structures>
   </release>
 </grit>