stop using x-devtools-emulate-network-conditions-client-id header

https://chromium-review.googlesource.com/c/chromium/src/+/1086949

atom/browser/api/atom_api_session.cc

@@ -27,7 +27,6 @@
 #include "atom/common/native_mate_converters/gurl_converter.h"
 #include "atom/common/native_mate_converters/net_converter.h"
 #include "atom/common/native_mate_converters/value_converter.h"
-#include "atom/common/node_includes.h"
 #include "base/files/file_path.h"
 #include "base/guid.h"
 #include "base/strings/string_number_conversions.h"
@@ -56,10 +55,10 @@
 #include "net/url_request/static_http_user_agent_settings.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
-#include "services/network/throttling/network_conditions.h"
-#include "services/network/throttling/throttling_controller.h"
 #include "ui/base/l10n/l10n_util.h"
 
+#include "atom/common/node_includes.h"
+
 using atom::api::Cookies;
 using content::BrowserThread;
 using content::StoragePartition;
@@ -353,18 +352,6 @@ void DownloadIdCallback(content::DownloadManager* download_manager,
       false, std::vector<download::DownloadItem::ReceivedSlice>());
 }
 
-void SetDevToolsNetworkEmulationClientIdInIO(
-    net::URLRequestContextGetter* url_request_context_getter,
-    const std::string& client_id) {
-  if (!url_request_context_getter)
-    return;
-  net::URLRequestContext* context =
-      url_request_context_getter->GetURLRequestContext();
-  AtomNetworkDelegate* network_delegate =
-      static_cast<AtomNetworkDelegate*>(context->network_delegate());
-  network_delegate->SetDevToolsNetworkEmulationClientId(client_id);
-}
-
 void DestroyGlobalHandle(v8::Isolate* isolate,
                          const v8::Global<v8::Value>& global_handle) {
   v8::Locker locker(isolate);
@@ -385,7 +372,7 @@ void DestroyGlobalHandle(v8::Isolate* isolate,
 }  // namespace
 
 Session::Session(v8::Isolate* isolate, AtomBrowserContext* browser_context)
-    : devtools_network_emulation_client_id_(base::GenerateGUID()),
+    : network_emulation_token_(base::UnguessableToken::Create()),
       browser_context_(browser_context) {
   // Observe DownloadManager to get download notifications.
   content::BrowserContext::GetDownloadManager(browser_context)
@@ -503,37 +490,29 @@ void Session::SetDownloadPath(const base::FilePath& path) {
 }
 
 void Session::EnableNetworkEmulation(const mate::Dictionary& options) {
-  std::unique_ptr<network::NetworkConditions> conditions;
-  bool offline = false;
-  double latency = 0.0, download_throughput = 0.0, upload_throughput = 0.0;
-  if (options.Get("offline", &offline) && offline) {
-    conditions.reset(new network::NetworkConditions(offline));
-  } else {
-    options.Get("latency", &latency);
-    options.Get("downloadThroughput", &download_throughput);
-    options.Get("uploadThroughput", &upload_throughput);
-    conditions.reset(new network::NetworkConditions(
-        false, latency, download_throughput, upload_throughput));
+  auto conditions = network::mojom::NetworkConditions::New();
+
+  options.Get("offline", &conditions->offline);
+  options.Get("downloadThroughput", &conditions->download_throughput);
+  options.Get("uploadThroughput", &conditions->upload_throughput);
+  double latency = 0.0;
+  if (options.Get("latency", &latency) && latency) {
+    conditions->latency = base::TimeDelta::FromMillisecondsD(latency);
   }
 
-  network::ThrottlingController::SetConditions(
-      devtools_network_emulation_client_id_, std::move(conditions));
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::BindOnce(&SetDevToolsNetworkEmulationClientIdInIO,
-                     base::RetainedRef(browser_context_->GetRequestContext()),
-                     devtools_network_emulation_client_id_));
+  auto* network_context = content::BrowserContext::GetDefaultStoragePartition(
+                              browser_context_.get())
+                              ->GetNetworkContext();
+  network_context->SetNetworkConditions(network_emulation_token_,
+                                        std::move(conditions));
 }
 
 void Session::DisableNetworkEmulation() {
-  auto conditions = std::make_unique<network::NetworkConditions>();
-  network::ThrottlingController::SetConditions(
-      devtools_network_emulation_client_id_, std::move(conditions));
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::BindOnce(&SetDevToolsNetworkEmulationClientIdInIO,
-                     base::RetainedRef(browser_context_->GetRequestContext()),
-                     std::string()));
+  auto* network_context = content::BrowserContext::GetDefaultStoragePartition(
+                              browser_context_.get())
+                              ->GetNetworkContext();
+  network_context->SetNetworkConditions(
+      network_emulation_token_, network::mojom::NetworkConditions::New());
 }
 
 void Session::SetCertVerifyProc(v8::Local<v8::Value> val,

atom/browser/api/atom_api_session.h

@@ -107,8 +107,8 @@ class Session : public mate::TrackableObject<Session>,
   v8::Global<v8::Value> web_request_;
   v8::Global<v8::Value> net_log_;
 
-  // The X-DevTools-Emulate-Network-Conditions-Client-Id.
-  std::string devtools_network_emulation_client_id_;
+  // The client id to enable the network throttler.
+  base::UnguessableToken network_emulation_token_;
 
   scoped_refptr<AtomBrowserContext> browser_context_;
 

atom/browser/net/atom_network_delegate.cc

@@ -20,10 +20,8 @@
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/url_request/url_request.h"
-#include "services/network/throttling/throttling_network_transaction.h"
 
 using content::BrowserThread;
-using network::ThrottlingNetworkTransaction;
 
 namespace atom {
 
@@ -269,11 +267,6 @@ void AtomNetworkDelegate::SetResponseListenerInIO(ResponseEvent type,
     response_listeners_[type] = {std::move(patterns), std::move(callback)};
 }
 
-void AtomNetworkDelegate::SetDevToolsNetworkEmulationClientId(
-    const std::string& client_id) {
-  client_id_ = client_id;
-}
-
 int AtomNetworkDelegate::OnBeforeURLRequest(
     net::URLRequest* request,
     const net::CompletionCallback& callback,
@@ -297,10 +290,6 @@ int AtomNetworkDelegate::OnBeforeStartTransaction(
     net::URLRequest* request,
     const net::CompletionCallback& callback,
     net::HttpRequestHeaders* headers) {
-  if (!client_id_.empty())
-    headers->SetHeader(network::ThrottlingNetworkTransaction::
-                           kDevToolsEmulateNetworkConditionsClientId,
-                       client_id_);
   if (!base::ContainsKey(response_listeners_, kOnBeforeSendHeaders))
     return net::OK;
 

atom/browser/net/atom_network_delegate.h

@@ -79,8 +79,6 @@ class AtomNetworkDelegate : public net::NetworkDelegate {
                                URLPatterns patterns,
                                ResponseListener callback);
 
-  void SetDevToolsNetworkEmulationClientId(const std::string& client_id);
-
  protected:
   // net::NetworkDelegate:
   int OnBeforeURLRequest(net::URLRequest* request,
@@ -172,9 +170,6 @@ class AtomNetworkDelegate : public net::NetworkDelegate {
   std::map<uint64_t, net::CompletionCallback> callbacks_;
   std::vector<std::string> ignore_connections_limit_domains_;
 
-  // Client id for devtools network emulation.
-  std::string client_id_;
-
   DISALLOW_COPY_AND_ASSIGN(AtomNetworkDelegate);
 };