Support for auth code based authentication flow for both app and web UI driven flow.

chrome/browser/chromeos/login/online_attempt_host.cc

Index: chrome/browser/chromeos/login/online_attempt_host.cc
diff --git a/chrome/browser/chromeos/login/online_attempt_host.cc b/chrome/browser/chromeos/login/online_attempt_host.cc
index 7c21186aea3f05c09c3706838028482c1198c124..801c8f447e71e91132f0c385cf8f112ebbf59447 100644
--- a/chrome/browser/chromeos/login/online_attempt_host.cc
+++ b/chrome/browser/chromeos/login/online_attempt_host.cc
@@ -24,24 +24,25 @@ OnlineAttemptHost::~OnlineAttemptHost() {
 }
 
 void OnlineAttemptHost::Check(Profile* profile,
-                              const std::string& username,
-                              const std::string& password) {
+                              const UserCredentials& credentials) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  std::string attempt_hash = base::SHA1HashString(username + "\n" + password);
+  std::string attempt_hash = base::SHA1HashString(
+      credentials.username + "\n" + credentials.password);
   if (attempt_hash != current_attempt_hash_) {
     Reset();
     current_attempt_hash_ = attempt_hash;
-    current_username_ = username;
+    current_username_ = credentials.username;
 
     state_.reset(
         new AuthAttemptState(
-            gaia::CanonicalizeEmail(username),
-            password,
-            std::string(),
-            std::string(),
-            std::string(),
+            UserCredentials(gaia::CanonicalizeEmail(credentials.username),
+                            credentials.password,
+                            credentials.auth_code),
+            std::string(),  // ascii_hash
+            std::string(),  // login_token
+            std::string(),  // login_captcha
             User::USER_TYPE_REGULAR,
-            false));  // Isn't a new user.
+            false));  // user_is_new.
     online_attempt_.reset(new OnlineAttempt(state_.get(),
                                             this));
     online_attempt_->Initiate(profile);