[ios] Removed RequestTracker dependency from WebLoadParams.

ios/web/navigation/web_load_params.h

 // Copyright 2013 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 IOS_WEB_NAVIGATION_WEB_LOAD_PARAMS_H_
 #define IOS_WEB_NAVIGATION_WEB_LOAD_PARAMS_H_
 
 #import <Foundation/Foundation.h>
 
 #import "base/mac/scoped_nsobject.h"
-#include "ios/net/request_tracker.h"
 #include "ios/web/public/referrer.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace web {
 
-// Parameters for creating a tab. Most paramaters are optional, and
-// can be left at the default values set by the constructor.
-// TODO(stuartmorgan): Remove the dependency on RequestTracker, then move
-// this into NavigationManager to parallel NavigationController's
-// LoadURLParams (which this is modeled after).
+// Parameters for URL loading. Most parameters are optional, and can be left at
+// the default values set by the constructor.
+// TODO(crbug.com/597990): Move this into NavigationManager to parallel
+// NavigationController's LoadURLParams (which this is modeled after).
 struct WebLoadParams {
  public:
   // The URL to load. Must be set.
   GURL url;
 
   // The referrer for the load. May be empty.
   Referrer referrer;
 
   // The transition type for the load. Defaults to PAGE_TRANSITION_LINK.
   ui::PageTransition transition_type;
 
   // True for renderer-initiated navigations. This is
   // important for tracking whether to display pending URLs.
   bool is_renderer_initiated;
 
-  // The cache mode to load with. Defaults to CACHE_NORMAL.
-  net::RequestTracker::CacheMode cache_mode;
-
   // Any extra HTTP headers to add to the load.
   base::scoped_nsobject<NSDictionary> extra_headers;
 
   // Any post data to send with the load. When setting this, you should
   // generally set a Content-Type header as well.
   base::scoped_nsobject<NSData> post_data;
 
   // Create a new WebLoadParams with the given URL and defaults for all other
   // parameters.
   explicit WebLoadParams(const GURL& url);
   ~WebLoadParams();
 
   // Allow copying WebLoadParams.
   WebLoadParams(const WebLoadParams& other);
   WebLoadParams& operator=(const WebLoadParams& other);
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_NAVIGATION_WEB_LOAD_PARAMS_H_