ScreenObserver is renamed to BaseScreenDelegate.

chrome/browser/chromeos/login/screens/base_screen_delegate.h

Index: chrome/browser/chromeos/login/screens/base_screen_delegate.h
diff --git a/chrome/browser/chromeos/login/screens/screen_observer.h b/chrome/browser/chromeos/login/screens/base_screen_delegate.h
similarity index 89%
rename from chrome/browser/chromeos/login/screens/screen_observer.h
rename to chrome/browser/chromeos/login/screens/base_screen_delegate.h
index 9d5f3d9c9c9aaa8ab816b9beaeb71d403e48e96c..3e78ac25e6f7fbaa13eb07f47ff4e3c104f92243 100644
--- a/chrome/browser/chromeos/login/screens/screen_observer.h
+++ b/chrome/browser/chromeos/login/screens/base_screen_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_
+#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_BASE_SCREEN_DELEGATE_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_BASE_SCREEN_DELEGATE_H_
 
 #include <string>
 
@@ -14,7 +14,7 @@ class BaseScreen;
 
 // Interface that handles notifications received from any of login wizard
 // screens.
-class ScreenObserver {
+class BaseScreenDelegate {
  public:
   // Each login screen or a view shown within login wizard view is itself a
   // state. Upon exit each view returns one of the results by calling OnExit()
@@ -64,9 +64,9 @@ class ScreenObserver {
   virtual void HideErrorScreen(BaseScreen* parent_screen) = 0;
 
  protected:
-  virtual ~ScreenObserver() {}
+  virtual ~BaseScreenDelegate() {}
 };
 
 }  // namespace chromeos
 
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_BASE_SCREEN_DELEGATE_H_