Remove old phantom request path for launching prerender requests.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc

Index: chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
diff --git a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
index 92def35ac179459a90e16e00121884a1c5744e10..999b2d32a8d0b15deb21396272993d8071c0a7f8 100644
--- a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
+++ b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
@@ -19,7 +19,6 @@
 #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"
@@ -37,17 +36,12 @@
 #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.
@@ -62,32 +56,6 @@ 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);
@@ -136,17 +104,6 @@ bool ChromeResourceDispatcherHostDelegate::ShouldBeginRequest(
       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)) {