[Prerender] Change IPC from bool to enum for more prerender modes

chrome/browser/prerender/prerender_contents.cc

 // 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.
 
 #include "chrome/browser/prerender/prerender_contents.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <functional>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/process/process_metrics.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/history/history_tab_helper.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
 #include "chrome/browser/prerender/prerender_handle.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/prerender/prerender_resource_throttle.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/task_management/web_contents_tags.h"
 #include "chrome/browser/ui/tab_helpers.h"
 #include "chrome/browser/ui/web_contents_sizer.h"
 #include "chrome/common/prerender_messages.h"
+#include "chrome/common/prerender_types.h"
 #include "chrome/common/render_messages.h"
 #include "components/history/core/browser/history_types.h"
 #include "content/public/browser/browser_child_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/resource_request_details.h"
@@ skipping 465 matching lines @@
   Destroy(FINAL_STATUS_RENDERER_CRASHED);
 }
 
 void PrerenderContents::RenderFrameCreated(
     content::RenderFrameHost* render_frame_host) {
   // When a new RenderFrame is created for a prerendering WebContents, tell the
   // new RenderFrame it's being used for prerendering before any navigations
   // occur.  Note that this is always triggered before the first navigation, so
   // there's no need to send the message just after the WebContents is created.
   render_frame_host->Send(new PrerenderMsg_SetIsPrerendering(
-      render_frame_host->GetRoutingID(), true));
+      render_frame_host->GetRoutingID(), FULL_PRERENDER));
 }
 
 void PrerenderContents::DidStopLoading() {
   has_stopped_loading_ = true;
   NotifyPrerenderStopLoading();
 }
 
 void PrerenderContents::DocumentLoadedInFrame(
     content::RenderFrameHost* render_frame_host) {
   if (!render_frame_host->GetParent())
@@ skipping 167 matching lines @@
   return prerender_contents_ &&
          prerender_contents_->GetSiteInstance() !=
              prerender_contents_->GetPendingSiteInstance();
 }
 
 void PrerenderContents::PrepareForUse() {
   SetFinalStatus(FINAL_STATUS_USED);
 
   if (prerender_contents_.get()) {
     prerender_contents_->SendToAllFrames(
-        new PrerenderMsg_SetIsPrerendering(MSG_ROUTING_NONE, false));
+        new PrerenderMsg_SetIsPrerendering(MSG_ROUTING_NONE, NO_PRERENDER));
   }
 
   NotifyPrerenderStop();
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&ResumeThrottles, resource_throttles_));
   resource_throttles_.clear();
 }
 
 void PrerenderContents::OnCancelPrerenderForPrinting() {
   Destroy(FINAL_STATUS_WINDOW_PRINT);
 }
 
 void PrerenderContents::AddResourceThrottle(
     const base::WeakPtr<PrerenderResourceThrottle>& throttle) {
   resource_throttles_.push_back(throttle);
 }
 
 void PrerenderContents::AddNetworkBytes(int64_t bytes) {
   network_bytes_ += bytes;
 }
 
 }  // namespace prerender