cablev2: plumb a NetworkContext into discovery.

This change plumbs a NetworkContext for WebSocket creation into the
|FidoDiscoveryFactory| when caBLEv2 is enabled.

BUG=1002262

Change-Id: I0fabe9642c785669c75516207bf4d8f2f8c147e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2340389
Commit-Queue: Adam Langley <agl@chromium.org>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Cr-Commit-Position: refs/heads/master@{#799869}

chrome/browser/webauthn/chrome_authenticator_request_delegate.cc

@@ -18,6 +18,7 @@
 #include "base/time/time.h"
 #include "base/values.h"
 #include "build/build_config.h"
+#include "chrome/browser/net/system_network_context_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webauthn/authenticator_request_dialog.h"
 #include "chrome/browser/webauthn/authenticator_request_dialog_model.h"
@@ -330,6 +331,8 @@ void ChromeAuthenticatorRequestDelegate::ConfigureCable(
     content::GetDeviceService().BindUsbDeviceManager(
         usb_device_manager.BindNewPipeAndPassReceiver());
     discovery_factory->set_usb_device_manager(std::move(usb_device_manager));
+    discovery_factory->set_network_context(
+        SystemNetworkContextManager::GetInstance()->GetContext());
   }
 
   if (pairings.empty() && !qr_generator_key) {

device/fido/fido_discovery_factory.cc

@@ -47,8 +47,7 @@ std::unique_ptr<FidoDiscoveryBase> FidoDiscoveryFactory::Create(
           (cable_data_.has_value() || qr_generator_key_.has_value())) {
         return std::make_unique<FidoCableDiscovery>(
             cable_data_.value_or(std::vector<CableDiscoveryData>()),
-            qr_generator_key_, cable_pairing_callback_,
-            /*network_context=*/nullptr);
+            qr_generator_key_, cable_pairing_callback_, network_context_);
       }
       return nullptr;
     case FidoTransportProtocol::kNearFieldCommunication:
@@ -87,6 +86,11 @@ void FidoDiscoveryFactory::set_usb_device_manager(
   usb_device_manager_.emplace(std::move(usb_device_manager));
 }
 
+void FidoDiscoveryFactory::set_network_context(
+    network::mojom::NetworkContext* network_context) {
+  network_context_ = network_context;
+}
+
 void FidoDiscoveryFactory::set_cable_pairing_callback(
     base::RepeatingCallback<void(std::unique_ptr<CableDiscoveryData>)>
         pairing_callback) {

device/fido/fido_discovery_factory.h

@@ -19,6 +19,7 @@
 #include "device/fido/hid/fido_hid_discovery.h"
 #include "mojo/public/cpp/bindings/remote.h"
 #include "services/device/public/mojom/usb_manager.mojom.h"
+#include "services/network/public/mojom/network_context.mojom-forward.h"
 
 #if defined(OS_MAC)
 #include "device/fido/mac/authenticator_config.h"
@@ -53,6 +54,8 @@ class COMPONENT_EXPORT(DEVICE_FIDO) FidoDiscoveryFactory {
 
   void set_usb_device_manager(mojo::Remote<device::mojom::UsbDeviceManager>);
 
+  void set_network_context(network::mojom::NetworkContext*);
+
   // set_cable_pairing_callback installs a repeating callback that will be
   // called when a QR handshake results in a phone wishing to pair with this
   // browser.
@@ -91,6 +94,7 @@ class COMPONENT_EXPORT(DEVICE_FIDO) FidoDiscoveryFactory {
 #endif  // defined(OS_MAC)
   base::Optional<mojo::Remote<device::mojom::UsbDeviceManager>>
       usb_device_manager_;
+  network::mojom::NetworkContext* network_context_ = nullptr;
   base::Optional<std::vector<CableDiscoveryData>> cable_data_;
   base::Optional<QRGeneratorKey> qr_generator_key_;
   base::Optional<