Remove InlineLoginHandlerChromeOS and exclude InlineLoginUI from CrOS build.

chrome/browser/ui/webui/signin/get_auth_frame.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_
+
+#include <string>
+
+namespace content {
+class RenderFrameHost;
+class WebContents;
+}
+
+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);
+
+}  // namespace signin
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_GET_AUTH_FRAME_H_