| // Copyright 2019 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_RENDERER_ASH_MERGE_SESSION_LOADER_THROTTLE_H_ |
| #define CHROME_RENDERER_ASH_MERGE_SESSION_LOADER_THROTTLE_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/memory/weak_ptr.h" |
| #include "base/time/time.h" |
| #include "chrome/renderer/chrome_render_thread_observer.h" |
| #include "chrome/renderer/chromeos_delayed_callback_group.h" |
| #include "third_party/blink/public/common/loader/url_loader_throttle.h" |
| |
| // This is used to throttle XHR resource requests on Chrome OS while the |
| // merge session is running (or a timeout). |
| class AshMergeSessionLoaderThrottle final : public blink::URLLoaderThrottle { |
| public: |
| static base::TimeDelta GetMergeSessionTimeout(); |
| |
| explicit AshMergeSessionLoaderThrottle( |
| scoped_refptr<ChromeRenderThreadObserver::ChromeOSListener> |
| chromeos_listener); |
| |
| AshMergeSessionLoaderThrottle(const AshMergeSessionLoaderThrottle&) = delete; |
| AshMergeSessionLoaderThrottle& operator=( |
| const AshMergeSessionLoaderThrottle&) = delete; |
| |
| ~AshMergeSessionLoaderThrottle() override; |
| |
| // blink::URLLoaderThrottle: |
| void WillStartRequest(network::ResourceRequest* request, |
| bool* defer) override; |
| void WillRedirectRequest( |
| net::RedirectInfo* redirect_info, |
| const network::mojom::URLResponseHead& response_head, |
| bool* defer, |
| std::vector<std::string>* to_be_removed_headers, |
| net::HttpRequestHeaders* modified_headers, |
| net::HttpRequestHeaders* modified_cors_exempt_headers) override; |
| |
| private: |
| bool MaybeDeferForMergeSession( |
| const GURL& url, |
| DelayedCallbackGroup::Callback resume_callback); |
| void DetachFromCurrentSequence() override; |
| void ResumeLoader(DelayedCallbackGroup::RunReason run_reason); |
| |
| bool is_xhr_ = false; |
| scoped_refptr<ChromeRenderThreadObserver::ChromeOSListener> |
| chromeos_listener_; |
| base::WeakPtrFactory<AshMergeSessionLoaderThrottle> weak_ptr_factory_{this}; |
| }; |
| |
| #endif // CHROME_RENDERER_ASH_MERGE_SESSION_LOADER_THROTTLE_H_ |