[ABANDONED] [WIP] Refactor SafeBrowsingResourceThrottle in preparation for WebSocket

android_webview/browser/renderer_host/aw_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 "android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.h"
 
 #include <memory>
 #include <string>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_contents_client_bridge.h"
 #include "android_webview/browser/aw_contents_io_thread_client.h"
 #include "android_webview/browser/aw_login_delegate.h"
 #include "android_webview/browser/aw_resource_context.h"
 #include "android_webview/browser/aw_safe_browsing_config_helper.h"
 #include "android_webview/browser/aw_safe_browsing_resource_throttle.h"
 #include "android_webview/browser/net/aw_web_resource_request.h"
 #include "android_webview/browser/renderer_host/auto_login_parser.h"
 #include "android_webview/common/url_constants.h"
 #include "base/memory/scoped_vector.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
 #include "components/safe_browsing_db/safe_browsing_api_handler.h"
 #include "components/web_restrictions/browser/web_restrictions_resource_throttle.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/resource_dispatcher_host_login_delegate.h"
 #include "content/public/browser/resource_request_info.h"
+#include "content/public/browser/resource_throttle.h"
 #include "content/public/browser/web_contents.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_status.h"
 #include "url/url_constants.h"
 
 using android_webview::AwContentsIoThreadClient;
 using android_webview::AwContentsClientBridge;
@@ skipping 252 matching lines @@
 
   const content::ResourceRequestInfo* request_info =
       content::ResourceRequestInfo::ForRequest(request);
 
   std::unique_ptr<IoThreadClientThrottle> ioThreadThrottle =
       base::MakeUnique<IoThreadClientThrottle>(request_info->GetChildID(),
                                                request_info->GetRenderFrameID(),
                                                request);
 
   if (ioThreadThrottle->GetSafeBrowsingEnabled()) {
-    content::ResourceThrottle* throttle =
-        AwSafeBrowsingResourceThrottle::MaybeCreate(
+    std::unique_ptr<content::ResourceThrottle> throttle =
+        MaybeCreateAwSafeBrowsingResourceThrottle(
             request, resource_type,
             AwBrowserContext::GetDefault()->GetSafeBrowsingDBManager(),
             AwBrowserContext::GetDefault()->GetSafeBrowsingUIManager());
-    if (throttle == nullptr) {
-      // Should not happen
-      DLOG(WARNING) << "Failed creating safebrowsing throttle";
-    } else {
-      throttles->push_back(base::WrapUnique(throttle));
-    }
+    DCHECK(throttle);
+    throttles->push_back(std::move(throttle));
   }
 
   // We always push the throttles here. Checking the existence of io_client
   // is racy when a popup window is created. That is because RequestBeginning
   // is called whether or not requests are blocked via BlockRequestForRoute()
   // however io_client may or may not be ready at the time depending on whether
   // webcontents is created.
   throttles->push_back(std::move(ioThreadThrottle));
 
   bool is_main_frame = resource_type == content::RESOURCE_TYPE_MAIN_FRAME;
@@ skipping 193 matching lines @@
       net::HttpRequestHeaders headers;
       headers.AddHeadersFromString(extra_headers);
       for (net::HttpRequestHeaders::Iterator it(headers); it.GetNext(); ) {
         request->SetExtraRequestHeaderByName(it.name(), it.value(), false);
       }
     }
   }
 }
 
 }  // namespace android_webview