Revert of Add a NavigationThrottle to the public content/ interface

components/navigation_interception/intercept_navigation_delegate.cc

Index: components/navigation_interception/intercept_navigation_delegate.cc
diff --git a/components/navigation_interception/intercept_navigation_delegate.cc b/components/navigation_interception/intercept_navigation_delegate.cc
index 11017f3baa2c42758f7fbec5b0f371f90e47f599..ba9053d663cfdcf0b42b0f6a521341dfe4e83bc3 100644
--- a/components/navigation_interception/intercept_navigation_delegate.cc
+++ b/components/navigation_interception/intercept_navigation_delegate.cc
@@ -7,10 +7,9 @@
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/callback.h"
-#include "components/navigation_interception/intercept_navigation_throttle.h"
+#include "components/navigation_interception/intercept_navigation_resource_throttle.h"
 #include "components/navigation_interception/navigation_params_android.h"
 #include "content/public/browser/browser_thread.h"
-#include "content/public/browser/navigation_throttle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_request_info.h"
@@ -84,12 +83,10 @@
 }
 
 // static
-scoped_ptr<content::NavigationThrottle>
-InterceptNavigationDelegate::CreateThrottleFor(
-    content::NavigationHandle* handle) {
-  return scoped_ptr<content::NavigationThrottle>(
-      new InterceptNavigationThrottle(
-          handle, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread)));
+content::ResourceThrottle* InterceptNavigationDelegate::CreateThrottleFor(
+    net::URLRequest* request) {
+  return new InterceptNavigationResourceThrottle(
+      request, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread));
 }
 
 // static