Introduce WebCachePolicy to merge cache policy enums

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index f572f3e938b981876a6175c1fa4ef9783d96ca1b..597be0169e173cdb00f42bc18ae1b92df3b44690 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -84,6 +84,7 @@ class WebPresentationClient;
 class WebPushClient;
 class WebSecurityOrigin;
 class WebWakeLockClient;
+enum class WebCachePolicy;
 struct WebCompositionUnderline;
 struct WebContextMenuData;
 struct WebCursorInfo;
@@ -891,9 +892,7 @@ class CONTENT_EXPORT RenderFrameImpl
   // Does preparation for the navigation to |url|.
   void PrepareRenderViewForNavigation(
       const GURL& url,
-      const RequestNavigationParams& request_params,
-      bool* is_reload,
-      blink::WebURLRequest::CachePolicy* cache_policy);
+      const RequestNavigationParams& request_params);
 
   // PlzNavigate
   // Sends a FrameHostMsg_BeginNavigation to the browser based on the contents