Modify --isolate-extensions to not isolate hosted apps.

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 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/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 926 matching lines @@
     return true;
 
 #if defined(ENABLE_EXTENSIONS)
   return ChromeContentBrowserClientExtensionsPart::ShouldUseProcessPerSite(
       profile, effective_url);
 #else
   return false;
 #endif
 }
 
+bool ChromeContentBrowserClient::DoesSiteRequireDedicatedProcess(
+    content::BrowserContext* browser_context,
+    const GURL& effective_site_url) {
+#if defined(ENABLE_EXTENSIONS)
+  if (ChromeContentBrowserClientExtensionsPart::DoesSiteRequireDedicatedProcess(
+          browser_context, effective_site_url)) {
+    return true;
+  }
+#endif
+  return false;
+}
+
 // TODO(creis, nick): https://crbug.com/160576 describes a weakness in our
 // origin-lock enforcement, where we don't have a way to efficiently know
 // effective URLs on the IO thread, and wind up killing processes that e.g.
 // request cookies for their actual URL. This whole function (and its
 // ExtensionsPart) should be removed once we add that ability to the IO thread.
 bool ChromeContentBrowserClient::ShouldLockToOrigin(
     content::BrowserContext* browser_context,
     const GURL& effective_site_url) {
   // Origin lock to the search scheme would kill processes upon legitimate
   // requests for cookies from the search engine's domain.
@@ skipping 1750 matching lines @@
   if (channel <= kMaxDisableEncryptionChannel) {
     static const char* const kWebRtcDevSwitchNames[] = {
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)