Apply ExtensionNavigationThrottle filesystem/blob checks to all frames.

BUG=836858

Change-Id: I34333a72501129fd40b5a9aa6378c9f35f1e7fc2
Reviewed-on: https://chromium-review.googlesource.com/1028511
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Nick Carter <nick@chromium.org>
Commit-Queue: Charlie Reis <creis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553867}
bool DOMMessageQueue::WaitForMessage(std::string* message) {
  DCHECK(message);
  if (!renderer_crashed_ && message_queue_.empty()) {
    message_loop_runner_ =
        new MessageLoopRunner(MessageLoopRunner::QuitMode::IMMEDIATE);
    message_loop_runner_->Run();
  }
  return PopMessage(message);
}

bool DOMMessageQueue::WaitForMessage(std::string* message) {
  DCHECK(message);
  if (!renderer_crashed_ && message_queue_.empty()) {
    message_loop_runner_ =
        new MessageLoopRunner(MessageLoopRunner::QuitMode::IMMEDIATE);
    message_loop_runner_->Run();
  }
  return PopMessage(message);
}
