Move (most of) chrome/browser/drive into components/drive/service.

components/drive/drive_app_registry_observer.h

Index: components/drive/drive_app_registry_observer.h
diff --git a/chrome/browser/drive/drive_app_registry_observer.h b/components/drive/drive_app_registry_observer.h
similarity index 60%
rename from chrome/browser/drive/drive_app_registry_observer.h
rename to components/drive/drive_app_registry_observer.h
index 15750e619ec9e343724dbe300d309de459b7e92a..67cb933679947215724043ccd357c6dffcb01ed4 100644
--- a/chrome/browser/drive/drive_app_registry_observer.h
+++ b/components/drive/drive_app_registry_observer.h
@@ -1,9 +1,9 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_
-#define CHROME_BROWSER_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_
+#ifndef COMPONENTS_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_
+#define COMPONENTS_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_
 
 namespace drive {
 
@@ -18,4 +18,4 @@ class DriveAppRegistryObserver {
 
 }  // namespace drive
 
-#endif  // CHROME_BROWSER_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_
+#endif  // COMPONENTS_DRIVE_DRIVE_APP_REGISTRY_OBSERVER_H_