Notify SSLManager when all password fields on a page are gone

components/password_manager/content/browser/visible_password_observer.cc

+// 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.
+
+#include "components/password_manager/content/browser/visible_password_observer.h"
+
+#include "content/public/browser/render_frame_host.h"
+#include "content/public/common/origin_util.h"
+
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(password_manager::VisiblePasswordObserver);
+
+namespace password_manager {
+
+VisiblePasswordObserver::~VisiblePasswordObserver() {}
+
+void VisiblePasswordObserver::RenderFrameHasVisiblePasswordField(
+    content::RenderFrameHost* render_frame_host) {
+  frame_tree_nodes_with_visible_password_fields_.insert(
+      render_frame_host->GetFrameTreeNodeId());
+  MaybeNotifyPasswordInputShownOnHttp();
+}
+
+void VisiblePasswordObserver::RenderFrameHasNoVisiblePasswordFields(
+    content::RenderFrameHost* render_frame_host) {
+  frame_tree_nodes_with_visible_password_fields_.erase(
+      render_frame_host->GetFrameTreeNodeId());
+  MaybeNotifyAllFieldsInvisible();
+}
+
+void VisiblePasswordObserver::RenderFrameDeleted(
+    content::RenderFrameHost* render_frame_host) {
+  // If a renderer process crashes, it won't send notifications that
+  // the password fields have been hidden, so watch for crashing
+  // processes and remove them from
+  // |frame_tree_nodes_with_visible_password_fields_|.
+  frame_tree_nodes_with_visible_password_fields_.erase(
+      render_frame_host->GetFrameTreeNodeId());
+  MaybeNotifyAllFieldsInvisible();
+}
+
+VisiblePasswordObserver::VisiblePasswordObserver(
+    content::WebContents* web_contents)
+    : content::WebContentsObserver(web_contents), web_contents_(web_contents) {}
+
+void VisiblePasswordObserver::MaybeNotifyPasswordInputShownOnHttp() {
+  if (!content::IsOriginSecure(web_contents_->GetVisibleURL())) {
+    web_contents_->OnPasswordInputShownOnHttp();
+  }
+}
+
+void VisiblePasswordObserver::MaybeNotifyAllFieldsInvisible() {
+  if (frame_tree_nodes_with_visible_password_fields_.empty() &&
+      !content::IsOriginSecure(web_contents_->GetVisibleURL())) {
+    web_contents_->OnAllPasswordInputsHiddenOnHttp();
+  }
+}
+
+}  // namespace password_manager