Fix the misalignment on CrOS of the tab background images

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 1dbbf354822e90e208202db520836eb9f65bf3a1..ee40b8d80df3f9dfc45dcf33547465e1c2d09a5c 100644
--- a/chrome/app/theme/theme_resources.grd
+++ b/chrome/app/theme/theme_resources.grd
@@ -869,6 +869,9 @@
       <structure type="chrome_scaled_image" name="IDR_THEME_NTP_ATTRIBUTION" file="notused.png" />
       <structure type="chrome_scaled_image" name="IDR_THEME_NTP_BACKGROUND" file="common/ntp_background.png" />
       <structure type="chrome_scaled_image" name="IDR_THEME_NTP_BACKGROUND_WHITE" file="common/ntp_background_white.png" />
+      <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_OVERLAY" file="notused.png" />
+      <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_INCOGNITO_OVERLAY" file="notused.png" />
+      <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_V_OVERLAY" file="notused.png" />
       <if expr="not pp_ifdef('use_ash') and not is_macosx">
         <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND" file="theme_tab_background.png" />
         <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_INCOGNITO" file="theme_tab_background_incognito.png" />
@@ -878,6 +881,8 @@
         <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND" file="cros/theme_default_inactive.png" />
         <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_INCOGNITO" file="cros/theme_default_inactive.png" />
         <if expr="is_win">
+          <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_OVERLAY_WIN" file="notused.png" />
+          <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_INCOGNITO_OVERLAY_WIN" file="notused.png" />
           <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_WIN" file="theme_tab_background.png" />
           <structure type="chrome_scaled_image" name="IDR_THEME_TAB_BACKGROUND_INCOGNITO_WIN" file="theme_tab_background_incognito.png" />
         </if>