Update icons to show lowdata and very lowdata for 3G data....

chrome/browser/chromeos/status/network_menu.h

Index: chrome/browser/chromeos/status/network_menu.h
===================================================================
--- chrome/browser/chromeos/status/network_menu.h	(revision 63061)
+++ chrome/browser/chromeos/status/network_menu.h	(working copy)
@@ -114,6 +114,10 @@
   // on a light background or a white icon for display on a dark background.
   static SkBitmap IconForNetworkStrength(int strength, bool black);
 
+  // Returns the Icon for a network strength for CellularNetwork |cellular|.
+  // This returns different colored bars depending on cellular data left.
+  static SkBitmap IconForNetworkStrength(CellularNetwork cellular);
+
   // This method will convert the |icon| bitmap to the correct size for display.
   // If the |badge| icon is not empty, it will draw that on top of the icon.
   static SkBitmap IconForDisplay(SkBitmap icon, SkBitmap badge);
@@ -190,6 +194,12 @@
   // The number of wifi strength images.
   static const int kNumWifiImages;
 
+  // Bars image resources.
+  static const int kBarsImages[];
+  static const int kBarsImagesBlack[];
+  static const int kBarsImagesLowData[];
+  static const int kBarsImagesVLowData[];
+
   // Our menu items.
   MenuItemVector menu_items_;