Change Lo-Fi bool to bitmask to support multiple Previews types

content/public/browser/resource_request_info.h

 // 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 CONTENT_PUBLIC_BROWSER_RESOURCE_REQUEST_INFO_H_
 #define CONTENT_PUBLIC_BROWSER_RESOURCE_REQUEST_INFO_H_
 
 #include "base/callback_forward.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/global_request_id.h"
@@ skipping 31 matching lines @@
   CONTENT_EXPORT static void AllocateForTesting(net::URLRequest* request,
                                                 ResourceType resource_type,
                                                 ResourceContext* context,
                                                 int render_process_id,
                                                 int render_view_id,
                                                 int render_frame_id,
                                                 bool is_main_frame,
                                                 bool parent_is_main_frame,
                                                 bool allow_download,
                                                 bool is_async,
-                                                bool is_using_lofi);
+                                                int previews_state);

[nasko, 2016/12/08 22:19:33]

PreviewsState?

[megjablon, 2016/12/09 20:35:55]

Done.

 
   // Returns the associated RenderFrame for a given process. Returns false, if
   // there is no associated RenderFrame. This method does not rely on the
   // request being allocated by the ResourceDispatcherHost, but works for all
   // URLRequests that are associated with a RenderFrame.
   CONTENT_EXPORT static bool GetRenderFrameForRequest(
       const net::URLRequest* request,
       int* render_process_id,
       int* render_frame_id);
 
@@ skipping 88 matching lines @@
   // Returns false if there is NOT an associated render frame.
   virtual bool GetAssociatedRenderFrame(int* render_process_id,
                                         int* render_frame_id) const = 0;
 
   // Returns true if this is associated with an asynchronous request.
   virtual bool IsAsync() const = 0;
 
   // Whether this is a download.
   virtual bool IsDownload() const = 0;
 
-  // Whether this request if using Lo-Fi mode.
-  virtual bool IsUsingLoFi() const = 0;
+  // Returns the current state of Previews.
+  virtual int GetPreviewsState() const = 0;
 
   // PlzNavigate
   // Only used for navigations. Returns opaque data set by the embedder on the
   // UI thread at the beginning of navigation.
   virtual NavigationUIData* GetNavigationUIData() const = 0;
 
  protected:
   virtual ~ResourceRequestInfo() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RESOURCE_REQUEST_INFO_H_