Bug 1196327 - Toast background is the same color as the tabs tray background. r=mcomella

--HG--
extra : transplant_source : %3B%09%D5R%A6_%DAa%00%F5%9B%1E%7CW%89%02%CB3%A0%B0

mobile/android/base/resources/values/colors.xml

@@ -131,7 +131,7 @@
   <color name="remote_tabs_setup_button_background_hit">#D95300</color>
 
   <!-- Button toast colors. -->
-  <color name="toast_background">#DD363B40</color>
+  <color name="toast_background">#DD222222</color>
   <color name="toast_button_background">#00000000</color>
   <color name="toast_button_pressed">#DD2C3136</color>
   <color name="toast_button_text">#FFFFFFFF</color>