Implement the calls to GAIA for the IDP IFrame protocol.

google_apis/gaia/gaia_urls.cc

Index: google_apis/gaia/gaia_urls.cc
diff --git a/google_apis/gaia/gaia_urls.cc b/google_apis/gaia/gaia_urls.cc
index c54aaaae212f14c8f568174cf90553c9111712db..f0e8c07d4235705b149e1aafdcc3eddde6f925e7 100644
--- a/google_apis/gaia/gaia_urls.cc
+++ b/google_apis/gaia/gaia_urls.cc
@@ -40,6 +40,7 @@ const char kClientLoginToOAuth2UrlSuffix[] = "o/oauth2/programmatic_auth";
 const char kOAuth2AuthUrlSuffix[] = "o/oauth2/auth";
 const char kOAuth2RevokeUrlSuffix[] = "o/oauth2/revoke";
 const char kOAuth2TokenUrlSuffix[] = "o/oauth2/token";
+const char kOAuth2IFrameUrlSuffix[] = "o/oauth2/iframerpc";
 
 // API calls from www.googleapis.com
 const char kOAuth2IssueTokenUrlSuffix[] = "oauth2/v2/IssueToken";
@@ -116,6 +117,8 @@ GaiaUrls::GaiaUrls() {
   oauth2_auth_url_ = lso_origin_url_.Resolve(kOAuth2AuthUrlSuffix);
   oauth2_token_url_ = lso_origin_url_.Resolve(kOAuth2TokenUrlSuffix);
   oauth2_revoke_url_ = lso_origin_url_.Resolve(kOAuth2RevokeUrlSuffix);
+  oauth2_iframe_url_ =
+      lso_origin_url_.Resolve(kOAuth2IFrameUrlSuffix);
 
   // URLs from www.googleapis.com.
   oauth2_issue_token_url_ =
@@ -191,6 +194,10 @@ const GURL& GaiaUrls::oauth_revoke_token_url() const {
   return oauth_revoke_token_url_;
 }
 
+const GURL& GaiaUrls::oauth2_iframe_url() const {
+  return oauth2_iframe_url_;
+}
+
 const GURL& GaiaUrls::oauth1_login_url() const {
   return oauth1_login_url_;
 }