chromeos: Delete old, unused contacts code.

chrome/browser/chromeos/chrome_browser_main_chromeos.h

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.h
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.h b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
index 462d319b7291ca849a9a87b5fe1462489f1d97e9..c9bc75e48d240548ce09d07507c9d3d95a9ecf3d 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.h
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
@@ -10,10 +10,6 @@
 #include "chrome/browser/chrome_browser_main_linux.h"
 #include "chrome/browser/chromeos/version_loader.h"
 
-namespace contacts {
-class ContactManager;
-}
-
 namespace content {
 class PowerSaveBlocker;
 }
@@ -61,7 +57,6 @@ class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
   virtual void PostDestroyThreads() OVERRIDE;
 
  private:
-  scoped_ptr<contacts::ContactManager> contact_manager_;
   scoped_ptr<default_app_order::ExternalLoader> app_order_loader_;
   scoped_ptr<ExtensionSystemEventObserver> extension_system_event_observer_;
   scoped_ptr<PeripheralBatteryObserver> peripheral_battery_observer_;