[cros] Move User class to user_manager component.

chrome/browser/chromeos/attestation/platform_verification_flow.h

Index: chrome/browser/chromeos/attestation/platform_verification_flow.h
diff --git a/chrome/browser/chromeos/attestation/platform_verification_flow.h b/chrome/browser/chromeos/attestation/platform_verification_flow.h
index 5fb4a4e3efe40950cf1cce27bbd4b12e33b474fc..8c503126d18b257c629cba58afdd49505560c3c9 100644
--- a/chrome/browser/chromeos/attestation/platform_verification_flow.h
+++ b/chrome/browser/chromeos/attestation/platform_verification_flow.h
@@ -26,6 +26,10 @@ namespace cryptohome {
 class AsyncMethodCaller;
 }
 
+namespace user_manager {
+class User;
+}
+
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
@@ -34,7 +38,6 @@ namespace chromeos {
 
 class CryptohomeClient;
 class UserManager;
-class User;
 
 namespace attestation {
 
@@ -104,7 +107,7 @@ class PlatformVerificationFlow
 
     // Gets the user associated with the given |web_contents|.  NULL may be
     // returned.
-    virtual User* GetUser(content::WebContents* web_contents) = 0;
+    virtual user_manager::User* GetUser(content::WebContents* web_contents) = 0;
 
     // Gets the content settings map associated with the given |web_contents|.
     virtual HostContentSettingsMap* GetContentSettings(