[HBD] Intercept navigation to Flash download page

chrome/browser/chrome_content_browser_client.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/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 284 matching lines @@
 #include "extensions/common/extension_set.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 #include "extensions/common/manifest_handlers/shared_module_info.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/common/permissions/socket_permission.h"
 #include "extensions/common/switches.h"
 #endif
 
 #if defined(ENABLE_PLUGINS)
 #include "chrome/browser/plugins/chrome_content_browser_client_plugins_part.h"
+#include "chrome/browser/plugins/flash_download_interception.h"
 #endif
 
 #if defined(ENABLE_SPELLCHECK)
 #include "chrome/browser/spellchecker/spellcheck_message_filter.h"
 #endif
 
 #if defined(USE_BROWSER_SPELLCHECKER)
 #include "components/spellcheck/browser/spellcheck_message_filter_platform.h"
 #endif
 
@@ skipping 2681 matching lines @@
   if (url.is_valid()) {
     rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
                                             metric, url);
   }
 }
 
 ScopedVector<content::NavigationThrottle>
 ChromeContentBrowserClient::CreateThrottlesForNavigation(
     content::NavigationHandle* handle) {
   ScopedVector<content::NavigationThrottle> throttles;
+
   if (handle->IsInMainFrame()) {
+#if defined(ENABLE_PLUGINS)
+    std::unique_ptr<content::NavigationThrottle> flash_url_throttle =
+        FlashDownloadInterception::MaybeCreateThrottleFor(handle);
+    if (flash_url_throttle)
+      throttles.push_back(std::move(flash_url_throttle));
+#endif
+
     throttles.push_back(
         page_load_metrics::MetricsNavigationThrottle::Create(handle));
   }
 
 #if defined(OS_ANDROID)
   // TODO(davidben): This is insufficient to integrate with prerender properly.
   // https://crbug.com/370595
   prerender::PrerenderContents* prerender_contents =
       prerender::PrerenderContents::FromWebContents(handle->GetWebContents());
   if (!prerender_contents && handle->IsInMainFrame()) {
@@ skipping 136 matching lines @@
   if (channel <= kMaxDisableEncryptionChannel) {
     static const char* const kWebRtcDevSwitchNames[] = {
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)