Add some includes to web_url_loader_impl.

BUG=none

Review URL: https://codereview.chromium.org/488393002

Cr-Commit-Position: refs/heads/master@{#291440}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@291440 0039d316-1c4b-4281-b951-d872f2087c98

content/child/web_url_loader_impl.h

@@ -10,6 +10,8 @@
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebURLLoader.h"
 
+class GURL;
+
 namespace content {
 
 class ResourceDispatcher;

content/child/web_url_loader_impl_unittest.cc

@@ -9,6 +9,7 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "base/time/time.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/public/child/request_peer.h"
 #include "content/public/common/resource_response_info.h"