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

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

 // Copyright 2016 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_UI_WEBUI_SIGNIN_GET_AUTH_FRAME_H_
-#define CHROME_BROWSER_UI_WEBUI_SIGNIN_GET_AUTH_FRAME_H_
+#ifndef CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_UTILS_H_
+#define CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_UTILS_H_
 
 #include <string>
 
+#include "base/values.h"
+
+class Browser;
+
 namespace content {
 class RenderFrameHost;
 class WebContents;
+class WebUI;
 }
 
 namespace signin {
 
 // Gets a webview within an auth page that has the specified parent frame name
 // (i.e. <webview name="foobar"></webview>).
 content::RenderFrameHost* GetAuthFrame(content::WebContents* web_contents,
                                        const std::string& parent_frame_name);
 
 content::WebContents* GetAuthFrameWebContents(
     content::WebContents* web_contents,
     const std::string& parent_frame_name);
 
+// Gets the browser containing the web UI; if none is found, returns the last
+// active browser for web UI's profile.
+Browser* GetDesktopBrowser(content::WebUI* web_ui);
+
+// Sets the height of the WebUI modal dialog after its initialization. This is
+// needed to better accomodate different locales' text heights.
+void SetInitializedModalHeight(const base::ListValue* args,

[tommycli, 2016/08/26 16:12:11]

nit: normally we always put the WebUI* in front of the ListValue* args.

+                               content::WebUI* web_ui);
+
 }  // namespace signin
 
-#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_GET_AUTH_FRAME_H_
+#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_UTILS_H_