Don't compile download notification code on !CrOS.

chrome/app/theme/theme_resources.grd

Index: chrome/app/theme/theme_resources.grd
diff --git a/chrome/app/theme/theme_resources.grd b/chrome/app/theme/theme_resources.grd
index 33a8ff15964c21428a17ea3de82c7abab25fe6c3..d3c8b85341a148fc57ce71bbe65a094764f2c158 100644
--- a/chrome/app/theme/theme_resources.grd
+++ b/chrome/app/theme/theme_resources.grd
@@ -242,21 +242,14 @@
       <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_BUTTON_RIGHT_TOP_H" file="common/download_button_right_top_hover.png" />
       <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_BUTTON_RIGHT_TOP_NO_DD" file="common/download_button_right_top_no_dd.png" />
       <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_BUTTON_RIGHT_TOP_P" file="common/download_button_right_top_pressed.png" />
-      <if expr="is_macosx">
-        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_DOWNLOADING" file="legacy/download_icon.png" />
-        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_ERROR" file="legacy/download_error.png" />
-        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_INCOGNITO" file="legacy/download_icon_incognito.png" />
-        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_WARNING_BAD" file="legacy/download_warning_bad.png" />
-        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_WARNING_UNWANTED" file="legacy/download_warning_unwanted.png" />
-      </if>
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_CANCEL" file="common/downloads/cancel.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_DELETE" file="common/downloads/delete.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_DOWNLOAD" file="common/downloads/download.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_FOLDER" file="common/downloads/folder.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_PAUSE" file="common/downloads/pause.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_PROGRESS_BACKGROUND_32" file="common/download_progress_background32.png" />
-      <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_PROGRESS_FOREGROUND_32" file="common/download_progress_foreground32.png" />
       <if expr="chromeos">
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_CANCEL" file="common/downloads/cancel.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_DELETE" file="common/downloads/delete.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_DOWNLOAD" file="common/downloads/download.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_FOLDER" file="common/downloads/folder.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_NOTIFICATION_MENU_PAUSE" file="common/downloads/pause.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_PROGRESS_BACKGROUND_32" file="common/download_progress_background32.png" />
+        <structure type="chrome_scaled_image" name="IDR_DOWNLOAD_PROGRESS_FOREGROUND_32" file="common/download_progress_foreground32.png" />

[Dan Beam, 2015/10/06 16:13:03]

ruh roh

         <structure type="chrome_scaled_image" name="IDR_ENABLE_DEBUGGING_FAILURE" file="cros/enable_debugging_failure.png" />
         <structure type="chrome_scaled_image" name="IDR_ENABLE_DEBUGGING_SUCCESS" file="cros/enable_debugging_success.png" />
       </if>