Remove pre-MD code from browser/ui/views/tabs/tab.cc

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 95912c6d4b054d5b602687e0b33c7f74ca2038ae..f78741237ce9a4234ece3949a253c21e36efa44b 100644
--- a/chrome/app/theme/theme_resources.grd
+++ b/chrome/app/theme/theme_resources.grd
@@ -663,16 +663,6 @@
         <structure type="chrome_scaled_image" name="IDR_LOGO_GOOGLE_COLOR_90" file="cros/logo_google_color_90.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_SUPERVISED_USER_PLACEHOLDER" file="common/supervised_user_placeholder.png" />
-      <if expr="toolkit_views and not is_macosx">
-        <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" />
-        <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" />
-        <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">
         <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" />
@@ -681,9 +671,6 @@
         <structure type="chrome_scaled_image" name="IDR_TAB_ALPHA_RIGHT" file="mac/tab_alpha_right.png" />
         <structure type="chrome_scaled_image" name="IDR_SWIPE_BACK" file="mac/back_large.png" />
         <structure type="chrome_scaled_image" name="IDR_SWIPE_FORWARD" file="mac/forward_large.png" />
-        <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>
       <!-- 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,