[Signin Error Dialog] (2/3) Added handlers and UI constructors

chrome/browser/ui/webui/signin/signin_utils.cc

Index: chrome/browser/ui/webui/signin/signin_utils.cc
diff --git a/chrome/browser/ui/webui/signin/get_auth_frame.cc b/chrome/browser/ui/webui/signin/signin_utils.cc
similarity index 67%
rename from chrome/browser/ui/webui/signin/get_auth_frame.cc
rename to chrome/browser/ui/webui/signin/signin_utils.cc
index f5705a299978da8b6e019b339a5c9d7edd28903a..9adc9ac4e5f7cc56f6e561ad346615f8bccb0cf5 100644
--- a/chrome/browser/ui/webui/signin/get_auth_frame.cc
+++ b/chrome/browser/ui/webui/signin/signin_utils.cc
@@ -2,13 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/webui/signin/get_auth_frame.h"
+#include "chrome/browser/ui/webui/signin/signin_utils.h"
 
 #include <set>
 
 #include "base/bind.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser_finder.h"
 #include "components/guest_view/browser/guest_view_manager.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 namespace {
@@ -51,4 +54,24 @@ content::WebContents* GetAuthFrameWebContents(
   return nullptr;
 }
 
+Browser* GetDesktopBrowser(content::WebUI* web_ui) {
+  Browser* browser =
+      chrome::FindBrowserWithWebContents(web_ui->GetWebContents());
+  if (!browser)
+    browser = chrome::FindLastActiveWithProfile(Profile::FromWebUI(web_ui));
+  return browser;
+}
+
+void SetInitializedModalHeight(content::WebUI* web_ui,
+                               const base::ListValue* args) {
+  double height;
+  bool success = args->GetDouble(0, &height);
+  DCHECK(success);
+
+  Browser* browser = GetDesktopBrowser(web_ui);
+  DCHECK(browser);
+  browser->signin_view_controller()->SetModalSigninHeight(
+      static_cast<int>(height));
+}
+
 }  // namespace signin