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}
void SimulateMouseClick(WebContents* web_contents,
                        int modifiers,
                        blink::WebMouseEvent::Button button) {
  int x = web_contents->GetContainerBounds().width() / 2;
  int y = web_contents->GetContainerBounds().height() / 2;
  SimulateMouseClickAt(web_contents, modifiers, button, gfx::Point(x, y));
}

void SimulateMouseClick(WebContents* web_contents,
                        int modifiers,
                        blink::WebMouseEvent::Button button) {
  int x = web_contents->GetContainerBounds().width() / 2;
  int y = web_contents->GetContainerBounds().height() / 2;
  SimulateMouseClickAt(web_contents, modifiers, button, gfx::Point(x, y));
}
