Count visible password fields on a page

components/password_manager/content/browser/content_password_manager_driver.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 "components/password_manager/content/browser/content_password_manager_driver.h"
 
 #include "components/autofill/content/browser/content_autofill_driver.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/password_manager/content/browser/bad_message.h"
@@ skipping 193 matching lines @@
           password_form.origin,
           BadMessageReason::CPMD_BAD_ORIGIN_FOCUSED_PASSWORD_FORM_FOUND))
     return;
   GetPasswordManager()->OnPasswordFormForceSaveRequested(this, password_form);
 }
 
 void ContentPasswordManagerDriver::PasswordFieldVisibleInInsecureContext() {
   MaybeNotifyPasswordInputShownOnHttp(render_frame_host_);
 }
 
+void ContentPasswordManagerDriver::
+    AllPasswordFieldsInInsecureContextInvisible() {
+  // TODO(estark): if all frames in the frame tree have their password
+  // fields hidden, then notify the WebContents that there are no
+  // visible password fields left. https://crbug.com/658764
+}
+
 void ContentPasswordManagerDriver::DidNavigateFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   // Clear page specific data after main frame navigation.
   if (!render_frame_host_->GetParent() && !details.is_in_page) {
     GetPasswordManager()->DidNavigateMainFrame();
     GetPasswordAutofillManager()->DidNavigateMainFrame();
   }
 }
 
@@ skipping 98 matching lines @@
 ContentPasswordManagerDriver::GetPasswordGenerationAgent() {
   if (!password_gen_agent_) {
     render_frame_host_->GetRemoteInterfaces()->GetInterface(
         mojo::GetProxy(&password_gen_agent_));
   }
 
   return password_gen_agent_;
 }
 
 }  // namespace password_manager