Don't compile code for desktop zoom or GuestViews on mobile platforms.

chrome/browser/ui/autofill/chrome_autofill_client.cc

 // 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.
 
 #include "chrome/browser/ui/autofill/chrome_autofill_client.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 292 matching lines @@
     return;
 #endif
 
   HideAutofillPopup();
 }
 
 void ChromeAutofillClient::WebContentsDestroyed() {
   HideAutofillPopup();
 }
 
+#if !defined(OS_ANDROID)
 void ChromeAutofillClient::OnZoomChanged(
     const zoom::ZoomController::ZoomChangedEventData& data) {
   HideAutofillPopup();
 }
+#endif  // !defined(OS_ANDROID)
 
 void ChromeAutofillClient::PropagateAutofillPredictions(
     content::RenderFrameHost* rfh,
     const std::vector<autofill::FormStructure*>& forms) {
   password_manager::ContentPasswordManagerDriver* driver =
       password_manager::ContentPasswordManagerDriver::GetForRenderFrameHost(
           rfh);
   if (driver) {
     driver->GetPasswordGenerationManager()->DetectFormsEligibleForGeneration(
         forms);
@@ skipping 61 matching lines @@
   // directly.
   const GURL kSecurityIndicatorHelpCenterUrl(
       "https://support.google.com/chrome/?p=ui_security_indicator");
   web_contents()->OpenURL(content::OpenURLParams(
       GURL(kSecurityIndicatorHelpCenterUrl), content::Referrer(),
       WindowOpenDisposition::NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_LINK,
       false /* is_renderer_initiated */));
 }
 
 }  // namespace autofill