Stop compiling password infobar code on Mac.

chrome/browser/password_manager/chrome_password_manager_client.h

 // Copyright 2014 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_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 84 matching lines @@
   // Hides any visible generation UI.
   void HidePasswordGenerationPopup();
 
   static void CreateForWebContentsWithAutofillClient(
       content::WebContents* contents,
       autofill::AutofillClient* autofill_client);
 
   // Observer for PasswordGenerationPopup events. Used for testing.
   void SetTestObserver(autofill::PasswordGenerationPopupObserver* observer);
 
-  // Returns true if the bubble UI is enabled, and false if we're still using
-  // the sad old Infobar UI.
-  static bool IsTheHotNewBubbleUIEnabled();
-
   static void BindCredentialManager(
       content::RenderFrameHost* render_frame_host,
       password_manager::mojom::CredentialManagerRequest request);
 
  protected:
   // Callable for tests.
   ChromePasswordManagerClient(content::WebContents* web_contents,
                               autofill::AutofillClient* autofill_client);
 
  private:
@@ skipping 75 matching lines @@
   std::unique_ptr<password_manager::LogManager> log_manager_;
 
   // Set during 'NotifyUserCouldBeAutoSignedIn' in order to store the
   // form for potential use during 'NotifySuccessfulLoginWithExistingPassword'.
   std::unique_ptr<autofill::PasswordForm> possible_auto_sign_in_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePasswordManagerClient);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_