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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/prerender/prerender_pending_swap_throttle.h" | |
| 6 | |
| 7 #include "chrome/browser/prerender/prerender_final_status.h" | |
| 8 #include "chrome/browser/prerender/prerender_manager.h" | |
| 9 #include "chrome/browser/prerender/prerender_tracker.h" | |
| 10 #include "chrome/browser/prerender/prerender_util.h" | |
| 11 #include "content/public/browser/resource_controller.h" | |
| 12 #include "content/public/browser/resource_request_info.h" | |
| 13 #include "net/url_request/url_request.h" | |
| 14 | |
| 15 using content::ResourceType; | |
| 16 | |
| 17 namespace prerender { | |
| 18 | |
| 19 PrerenderPendingSwapThrottle::PrerenderPendingSwapThrottle( | |
| 20 net::URLRequest* request, | |
| 21 PrerenderTracker* tracker) | |
| 22 : request_(request), | |
| 23 tracker_(tracker), | |
| 24 throttled_(false) { | |
| 25 } | |
| 26 | |
| 27 void PrerenderPendingSwapThrottle::WillStartRequest(bool* defer) { | |
| 28 DCHECK(!throttled_); | |
| 29 const content::ResourceRequestInfo* info = | |
| 30 content::ResourceRequestInfo::ForRequest(request_); | |
| 31 | |
| 32 // We only care about main frame loads. | |
| 33 if (info->GetResourceType() != content::RESOURCE_TYPE_MAIN_FRAME) | |
| 34 return; | |
| 35 | |
| 36 int render_process_id = info->GetChildID(); | |
| 37 int render_frame_id = info->GetRenderFrameID(); | |
| 38 | |
| 39 // Check if this request is for a URL we intend to swap in. | |
| 40 if (!tracker_->IsPendingSwapRequestOnIOThread( | |
| 41 render_process_id, render_frame_id, request_->url())) { | |
| 42 return; | |
| 43 } | |
| 44 | |
| 45 *defer = true; | |
| 46 throttled_ = true; | |
| 47 tracker_->AddPendingSwapThrottleOnIOThread( | |
| 48 render_process_id, render_frame_id, request_->url(), this->AsWeakPtr()); | |
| 49 } | |
| 50 | |
| 51 const char* PrerenderPendingSwapThrottle::GetNameForLogging() const { | |
| 52 return "PrerenderPendingSwapThrottle"; | |
| 53 } | |
| 54 | |
| 55 void PrerenderPendingSwapThrottle::Resume() { | |
| 56 DCHECK(throttled_); | |
| 57 | |
| 58 throttled_ = false; | |
| 59 controller()->Resume(); | |
| 60 } | |
| 61 | |
| 62 void PrerenderPendingSwapThrottle::Cancel() { | |
| 63 DCHECK(throttled_); | |
| 64 | |
| 65 throttled_ = false; | |
| 66 controller()->Cancel(); | |
| 67 } | |
| 68 | |
| 69 } // namespace prerender | |
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Chromium Code Reviews
Issue 797443002:
Remove prerender sessionStorage namespace merging (1/2) (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master