Use FrameIsAd to decide whether to isolate a frame in TopDocumentIsolation mode.

content/shell/browser/shell_content_browser_client.cc

 // Copyright 2013 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 "content/shell/browser/shell_content_browser_client.h"
 
 #include <stddef.h>
 #include <utility>
+#include <vector>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "base/strings/pattern.h"
@@ skipping 321 matching lines @@
 
 SpeechRecognitionManagerDelegate*
     ShellContentBrowserClient::CreateSpeechRecognitionManagerDelegate() {
   return new ShellSpeechRecognitionManagerDelegate();
 }
 
 net::NetLog* ShellContentBrowserClient::GetNetLog() {
   return shell_browser_main_parts_->net_log();
 }
 
+bool ShellContentBrowserClient::ShouldIsolateFrameFromMainContent(
+    content::RenderFrameHost* frame,
+    const GURL& dest_url,
+    content::SiteInstance* main_frame_site_instance) {
+  // To make it easier to test TopDocumentIsolation in content_browsertests,
+  // put *all* cross-site subframes into the TDI process (when TDI mode is
+  // enabled).
+  return true;
+}
+
 bool ShellContentBrowserClient::ShouldSwapProcessesForRedirect(
     BrowserContext* browser_context,
     const GURL& current_url,
     const GURL& new_url) {
   return g_swap_processes_for_redirect;
 }
 
 DevToolsManagerDelegate*
 ShellContentBrowserClient::GetDevToolsManagerDelegate() {
   return new ShellDevToolsManagerDelegate(browser_context());
@@ skipping 51 matching lines @@
 ShellBrowserContext* ShellContentBrowserClient::browser_context() {
   return shell_browser_main_parts_->browser_context();
 }
 
 ShellBrowserContext*
     ShellContentBrowserClient::off_the_record_browser_context() {
   return shell_browser_main_parts_->off_the_record_browser_context();
 }
 
 }  // namespace content