Revert of Add a NavigationThrottle to the public content/ interface

components/navigation_interception/intercept_navigation_resource_throttle.h

Index: components/navigation_interception/intercept_navigation_resource_throttle.h
diff --git a/components/navigation_interception/intercept_navigation_resource_throttle.h b/components/navigation_interception/intercept_navigation_resource_throttle.h
new file mode 100644
index 0000000000000000000000000000000000000000..db3a714ec4a5929a53d779368783ef0652a2ca98
--- /dev/null
+++ b/components/navigation_interception/intercept_navigation_resource_throttle.h
@@ -0,0 +1,63 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_
+#define COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/weak_ptr.h"
+#include "content/public/browser/resource_throttle.h"
+
+class GURL;
+
+namespace content {
+class WebContents;
+}
+
+namespace net {
+class URLRequest;
+}
+
+namespace navigation_interception {
+
+class NavigationParams;
+
+// This class allows the provider of the Callback to selectively ignore top
+// level navigations.
+class InterceptNavigationResourceThrottle : public content::ResourceThrottle {
+ public:
+  typedef base::Callback<bool(
+          content::WebContents* /* source */,
+          const NavigationParams& /* navigation_params */)>
+      CheckOnUIThreadCallback;
+
+  InterceptNavigationResourceThrottle(
+      net::URLRequest* request,
+      CheckOnUIThreadCallback should_ignore_callback);
+  ~InterceptNavigationResourceThrottle() override;
+
+  // content::ResourceThrottle implementation:
+  void WillStartRequest(bool* defer) override;
+  void WillRedirectRequest(const net::RedirectInfo& redirect_info,
+                           bool* defer) override;
+  const char* GetNameForLogging() const override;
+
+ private:
+  bool CheckIfShouldIgnoreNavigation(const GURL& url,
+                                     const std::string& method,
+                                     bool is_redirect);
+  void OnResultObtained(bool should_ignore_navigation);
+
+  net::URLRequest* request_;
+  CheckOnUIThreadCallback should_ignore_callback_;
+  base::WeakPtrFactory<InterceptNavigationResourceThrottle> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(InterceptNavigationResourceThrottle);
+};
+
+}  // namespace navigation_interception
+
+#endif  // COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_