chrome-search: should not be display-isolated

chrome/renderer/chrome_content_renderer_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/renderer/chrome_content_renderer_client.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 255 matching lines @@
     thread->GetChannel()->set_outgoing_message_filter(LoadExternalIPCFuzzer());
   }
   // chrome:, chrome-search:, chrome-devtools:, and chrome-internal: pages
   // should not be accessible by normal content, and should also be unable to
   // script anything but themselves (to help limit the damage that a corrupt
   // page could cause).
   WebString chrome_ui_scheme(ASCIIToUTF16(chrome::kChromeUIScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_ui_scheme);
 
   WebString chrome_search_scheme(ASCIIToUTF16(chrome::kChromeSearchScheme));
-  WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_search_scheme);
+  // The Instant process can only display the content but not read it.  Other
+  // processes can't display it or read it.
+  if (!command_line->HasSwitch(switches::kInstantProcess))
+    WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_search_scheme);
 
   WebString dev_tools_scheme(ASCIIToUTF16(chrome::kChromeDevToolsScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(dev_tools_scheme);
 
   WebString internal_scheme(ASCIIToUTF16(chrome::kChromeInternalScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(internal_scheme);
 
 #if defined(OS_CHROMEOS)
   WebString drive_scheme(ASCIIToUTF16(chrome::kDriveScheme));
   WebSecurityPolicy::registerURLSchemeAsLocal(drive_scheme);
@@ skipping 876 matching lines @@
 
   if (container->element().shadowHost().isNull())
     return false;
 
   WebString tag_name = container->element().shadowHost().tagName();
   return tag_name.equals(WebString::fromUTF8(kWebViewTagName)) ||
     tag_name.equals(WebString::fromUTF8(kAdViewTagName));
 }
 
 }  // namespace chrome