ChildProcessSecurityPolicy::CanAccessDataForOrigin workaround to suppress bad kills

content/browser/child_process_security_policy_impl.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 "content/browser/child_process_security_policy_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 799 matching lines @@
   SecurityStateMap::iterator state = security_state_.find(child_id);
   if (state == security_state_.end())
     return false;
   return state->second->HasPermissionsForFile(file, permissions);
 }
 
 bool ChildProcessSecurityPolicyImpl::CanAccessDataForOrigin(int child_id,
                                                             const GURL& gurl) {
   base::AutoLock lock(lock_);
   SecurityStateMap::iterator state = security_state_.find(child_id);
-  if (state == security_state_.end())
-    return false;
+  if (state == security_state_.end()) {
+    // TODO(nick): Returning true instead of false here is a temporary
+    // workaround for https://crbug.com/600441
+    return true;
+  }
   return state->second->CanAccessDataForOrigin(gurl);
 }
 
 void ChildProcessSecurityPolicyImpl::LockToOrigin(int child_id,
                                                   const GURL& gurl) {
   // "gurl" can be currently empty in some cases, such as file://blah.
   DCHECK(SiteInstanceImpl::GetSiteForURL(NULL, gurl) == gurl);
   base::AutoLock lock(lock_);
   SecurityStateMap::iterator state = security_state_.find(child_id);
   DCHECK(state != security_state_.end());
@@ skipping 35 matching lines @@
   base::AutoLock lock(lock_);
 
   SecurityStateMap::iterator state = security_state_.find(child_id);
   if (state == security_state_.end())
     return false;
 
   return state->second->can_send_midi_sysex();
 }
 
 }  // namespace content