make NavigationGesture part of public content API and use it outside content

content/public/browser/navigation_handle.h

 // Copyright 2015 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 CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 
 #include <memory>
 #include <string>
 
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_throttle.h"
+#include "content/public/common/navigation_gesture.h"
 #include "content/public/common/referrer.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_info.h"
 #include "ui/base/page_transition_types.h"
 
 class GURL;
 
 namespace net {
 class HttpResponseHeaders;
 }  // namespace net
@@ skipping 90 matching lines @@
   //
   // Note: page and frame navigations can only be done using HTTP POST or HTTP
   // GET methods (and using other, scheme-specific protocols for non-http(s) URI
   // schemes like data: or file:).  Therefore //content public API exposes only
   // |bool IsPost()| as opposed to |const std::string& GetMethod()| method.
   virtual bool IsPost() = 0;
 
   // Returns a sanitized version of the referrer for this request.
   virtual const Referrer& GetReferrer() = 0;
 
-  // Whether the navigation was initiated by a user gesture. Note that this
-  // will return false for browser-initiated navigations.
-  // TODO(clamy): when PlzNavigate launches, this should return true for
-  // browser-initiated navigations.
-  virtual bool HasUserGesture() = 0;
+  // The type of NavigationGesture that initiated the navigation for this
+  // NavigationHandle.  Note that this will return NavigationGestureAuto for
+  // browser-initiated navigations.  TODO(clamy): when PlzNavigate launches,
+  // this should return NavigationGestureUser for browser-initiated navigations.
+  virtual NavigationGesture GetNavigationGesture() = 0;
 
   // Returns the page transition type.
   virtual ui::PageTransition GetPageTransition() = 0;
 
   // Whether the target URL cannot be handled by the browser's internal protocol
   // handlers.
   virtual bool IsExternalProtocol() = 0;
 
   // Navigation control flow --------------------------------------------------
 
@@ skipping 66 matching lines @@
 
   // Testing methods ----------------------------------------------------------
   //
   // The following methods should be used exclusively for writing unit tests.
 
   static std::unique_ptr<NavigationHandle> CreateNavigationHandleForTesting(
       const GURL& url,
       RenderFrameHost* render_frame_host,
       bool committed = false,
       net::Error error = net::OK,
-      bool has_user_gesture = false);
+      NavigationGesture gesture = NavigationGestureUnknown);
 
   // Registers a NavigationThrottle for tests. The throttle can
   // modify the request, pause the request or cancel the request. This will
   // take ownership of the NavigationThrottle.
   // Note: in non-test cases, NavigationThrottles should not be added directly
   // but returned by the implementation of
   // ContentBrowserClient::CreateThrottlesForNavigation. This ensures proper
   // ordering of the throttles.
   virtual void RegisterThrottleForTesting(
       std::unique_ptr<NavigationThrottle> navigation_throttle) = 0;
@@ skipping 23 matching lines @@
 
   // The NavigationData that the embedder returned from
   // ResourceDispatcherHostDelegate::GetNavigationData during commit. This will
   // be a clone of the NavigationData.
   virtual NavigationData* GetNavigationData() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_