chromeos: Change all clients of UpdateLibrary to use UpdateEngineClient.

chrome/browser/chromeos/login/update_screen.h

Index: chrome/browser/chromeos/login/update_screen.h
diff --git a/chrome/browser/chromeos/login/update_screen.h b/chrome/browser/chromeos/login/update_screen.h
index c84a61dbe4aeee8f9f3c75f00ad723720a2ec3a6..050b5844c4547edb3c795db7b6ebc7bda4d07866 100644
--- a/chrome/browser/chromeos/login/update_screen.h
+++ b/chrome/browser/chromeos/login/update_screen.h
@@ -11,7 +11,7 @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
-#include "chrome/browser/chromeos/cros/update_library.h"
+#include "chrome/browser/chromeos/dbus/update_engine_client.h"
 #include "chrome/browser/chromeos/login/update_screen_actor.h"
 #include "chrome/browser/chromeos/login/wizard_screen.h"
 
@@ -22,7 +22,7 @@ class ScreenObserver;
 // Controller for the update screen. It does not depend on the specific
 // implementation of the screen showing (Views of WebUI based), the dependency
 // is moved to the UpdateScreenActor instead.
-class UpdateScreen: public UpdateLibrary::Observer,
+class UpdateScreen: public UpdateEngineClient::Observer,
                     public UpdateScreenActor::Delegate,
                     public WizardScreen {
  public:
@@ -60,8 +60,9 @@ class UpdateScreen: public UpdateLibrary::Observer,
   // Reports update results to the ScreenObserver.
   virtual void ExitUpdate(ExitReason reason);
 
-  // UpdateLibrary::Observer implementation:
-  virtual void UpdateStatusChanged(const UpdateLibrary::Status& status);
+  // UpdateEngineClient::Observer implementation:
+  virtual void UpdateStatusChanged(
+      const UpdateEngineClient::Status& status) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(UpdateScreenTest, TestBasic);