PlzNavigate: support the WebRequest API

content/browser/frame_host/navigation_handle_impl.cc

Index: content/browser/frame_host/navigation_handle_impl.cc
diff --git a/content/browser/frame_host/navigation_handle_impl.cc b/content/browser/frame_host/navigation_handle_impl.cc
index beb742447a27e46ce7ed905f6cd4b0850d35bfc4..9bdce7104f41b81ee87345a12857f4fbe50c447e 100644
--- a/content/browser/frame_host/navigation_handle_impl.cc
+++ b/content/browser/frame_host/navigation_handle_impl.cc
@@ -17,6 +17,7 @@
 #include "content/common/frame_messages.h"
 #include "content/common/resource_request_body_impl.h"
 #include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/navigation_ui_data.h"
 #include "content/public/common/browser_side_navigation_policy.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/url_constants.h"
@@ -383,6 +384,10 @@ void NavigationHandleImpl::WillStartRequest(
 
   RegisterNavigationThrottles();
 
+  if (IsBrowserSideNavigationEnabled()) {

[nasko, 2016/09/28 17:28:31]

nit: No need for {}.

[clamy, 2016/09/29 15:56:21]

Done.

+    navigation_ui_data_ = GetDelegate()->GetNavigationUIData(this);
+  }
+
   // Notify each throttle of the request.
   NavigationThrottle::ThrottleCheckResult result = CheckWillStartRequest();