Remove old phantom request path for launching prerender requests.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.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/renderer_host/chrome_resource_dispatcher_host_delegate.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/download/download_request_limiter.h"
 #include "chrome/browser/download/download_resource_throttle.h"
 #include "chrome/browser/download/download_util.h"
 #include "chrome/browser/extensions/user_script_listener.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/instant/instant_loader.h"
 #include "chrome/browser/net/load_timing_observer.h"
 #include "chrome/browser/prerender/prerender_manager.h"
-#include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/prerender/prerender_tracker.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/renderer_host/chrome_url_request_user_data.h"
 #include "chrome/browser/renderer_host/safe_browsing_resource_throttle.h"
 #include "chrome/browser/renderer_host/transfer_navigation_resource_throttle.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/ui/auto_login_prompter.h"
 #include "chrome/browser/ui/login/login_prompt.h"
 #include "chrome/browser/ui/sync/one_click_signin_helper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/user_script.h"
 #include "chrome/common/metrics/experiments_helper.h"
 #include "chrome/common/metrics/proto/chrome_experiments.pb.h"
 #include "chrome/common/render_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_view_host_delegate.h"
-#include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/resource_request_info.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_view.h"
 #include "net/base/load_flags.h"
 #include "net/base/ssl_config_service.h"
 #include "net/url_request/url_request.h"
-#include "ui/gfx/size.h"
 #include "third_party/protobuf/src/google/protobuf/repeated_field.h"
 
 // TODO(oshima): Enable this for other platforms.
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/renderer_host/offline_resource_throttle.h"
 #endif
 
 using content::BrowserThread;
 using content::RenderViewHost;
 using content::ResourceDispatcherHostLoginDelegate;
 using content::ResourceRequestInfo;
 
 namespace {
 
-// TODO(gavinp): Remove this after https://bugs.webkit.org/show_bug.cgi?id=85005
-// lands in WebKit.
-void AddPrerenderOnUI(
-    int render_process_id, int render_view_id,
-    const GURL& url, const content::Referrer& referrer) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  prerender::PrerenderManager* prerender_manager =
-      prerender::FindPrerenderManagerUsingRenderProcessId(render_process_id);
-  if (!prerender_manager)
-    return;
-
-  RenderViewHost* render_view_host =
-      RenderViewHost::FromID(render_process_id, render_view_id);
-  if (!render_view_host)
-    return;
-  gfx::Rect tab_bounds;
-  if (content::WebContents* source_wc =
-          render_view_host->GetDelegate()->GetAsWebContents())
-    source_wc->GetView()->GetContainerBounds(&tab_bounds);
-  gfx::Size view_size = tab_bounds.size();
-  if (view_size.IsEmpty())
-    view_size = prerender_manager->config().default_tab_bounds.size();
-  prerender_manager->AddPrerenderFromLinkRelPrerender(
-      render_process_id, render_view_id, url, referrer, view_size);
-}
-
 void NotifyDownloadInitiatedOnUI(int render_process_id, int render_view_id) {
   RenderViewHost* rvh = RenderViewHost::FromID(render_process_id,
                                                render_view_id);
   if (!rvh)
     return;
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_DOWNLOAD_INITIATED,
       content::Source<RenderViewHost>(rvh),
       content::NotificationService::NoDetails());
@@ skipping 28 matching lines @@
   if (resource_type == ResourceType::PREFETCH) {
     // All PREFETCH requests should be GETs, but be defensive about it.
     if (method != "GET")
       return false;
 
     // If prefetch is disabled, kill the request.
     if (!prerender::PrerenderManager::IsPrefetchEnabled())
       return false;
   }
 
-  // Handle a PRERENDER motivated request. Very similar to rel=prefetch, these
-  // rel=prerender requests instead launch an early render of the entire page.
-  if (resource_type == ResourceType::PRERENDER) {
-    if (prerender::PrerenderManager::IsPrerenderingPossible()) {
-      BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-          base::Bind(&AddPrerenderOnUI, child_id, route_id, url, referrer));
-    }
-    // Prerendering or not, this request should be aborted.
-    return false;
-  }
-
   // Abort any prerenders that spawn requests that use invalid HTTP methods.
   if (prerender_tracker_->IsPrerenderingOnIOThread(child_id, route_id) &&
       !prerender::PrerenderManager::IsValidHttpMethod(method)) {
     prerender_tracker_->TryCancelOnIOThread(
         child_id, route_id, prerender::FINAL_STATUS_INVALID_HTTP_METHOD);
     return false;
   }
 
   return true;
 }
@@ skipping 295 matching lines @@
   if (base::Base64Encode(serialized, &hashed)) {
     // If successful, swap the header value with the new one.
     // Note that the list of IDs and the header could be temporarily out of sync
     // if IDs are added as we are recreating the header, but we're OK with those
     // descrepancies.
     variation_ids_header_ = hashed;
   } else {
     DVLOG(1) << "Failed to base64 encode Variation IDs value: " << serialized;
   }
 }