content_shell: Fix a regression for paths starting with /media/.

components/test_runner/test_runner.h

Index: components/test_runner/test_runner.h
diff --git a/components/test_runner/test_runner.h b/components/test_runner/test_runner.h
index 77c31364c8db3ddb3be64f6d8a32371c98ee7890..fc9c732f43293e982f8d4a24f22b282fab5b5aa8 100644
--- a/components/test_runner/test_runner.h
+++ b/components/test_runner/test_runner.h
@@ -132,6 +132,8 @@ class TestRunner : public WebTestRunner {
   bool shouldDumpSpellCheckCallbacks() const;
   bool shouldWaitUntilExternalURLLoad() const;
   const std::set<std::string>* httpHeadersToClear() const;
+  bool did_request_after_reset() const { return did_request_after_reset_; }
+  void set_did_request_after_reset() { did_request_after_reset_ = true; }
 
   // To be called when |frame| starts loading - TestRunner will check if
   // there is currently no top-loading-frame being tracked and if so, then it
@@ -637,6 +639,9 @@ class TestRunner : public WebTestRunner {
 
   std::set<blink::WebWidget*> widgets_with_scheduled_animations_;
 
+  // True if we requested any resource after Reset().
+  bool did_request_after_reset_;
+
   base::WeakPtrFactory<TestRunner> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunner);