Remove InlineLoginHandlerChromeOS and exclude InlineLoginUI from CrOS build.

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

Index: chrome/browser/ui/webui/signin/inline_login_ui.h
diff --git a/chrome/browser/ui/webui/signin/inline_login_ui.h b/chrome/browser/ui/webui/signin/inline_login_ui.h
index 6aea463f4ad4053f59156074b42b32e2a087c459..55b00d2f5bed7d2306678340d05dd1880f6c5906 100644
--- a/chrome/browser/ui/webui/signin/inline_login_ui.h
+++ b/chrome/browser/ui/webui/signin/inline_login_ui.h
@@ -9,10 +9,6 @@
 #include "chrome/browser/extensions/signin/scoped_gaia_auth_extension.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 
-namespace content {
-class RenderFrameHost;
-}
-
 // Inline login WebUI in various signin flows for ChromeOS and Chrome desktop.
 // The authentication is carried out via the host gaia_auth extension. Upon
 // success, the profile of the webui should be populated with proper cookies.
@@ -22,18 +18,6 @@ class InlineLoginUI : public ui::WebDialogUI {
   explicit InlineLoginUI(content::WebUI* web_ui);
   ~InlineLoginUI() override;
 
-  // Gets the frame (iframe or webview) within an auth page that has the
-  // specified parent origin if |parent_origin| is not empty, and the specified
-  // parent frame name.
-  static content::RenderFrameHost* GetAuthFrame(
-      content::WebContents* web_contents,
-      const GURL& parent_origin,
-      const std::string& parent_frame_name);
-
-  static content::WebContents* GetAuthFrameWebContents(
-      content::WebContents* web_contents,
-      const GURL& parent_origin,
-      const std::string& parent_frame_name);
  private:
   ScopedGaiaAuthExtension auth_extension_;