Add rappor metrics to track Web Bluetooth API usage

third_party/WebKit/Source/modules/bluetooth/Bluetooth.cpp

 // Copyright 2015 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 "modules/bluetooth/Bluetooth.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/bluetooth/BluetoothDevice.h"
 #include "modules/bluetooth/BluetoothError.h"
 #include "modules/bluetooth/BluetoothRemoteGATTCharacteristic.h"
 #include "modules/bluetooth/BluetoothUUID.h"
 #include "modules/bluetooth/RequestDeviceOptions.h"
 #include "platform/UserGestureIndicator.h"
 #include "public/platform/InterfaceProvider.h"
+#include "public/platform/Platform.h"
 #include <memory>
 #include <utility>
 
 namespace blink {
 
 namespace {
 // Per the Bluetooth Spec: The name is a user-friendly name associated with the
 // device and consists of a maximum of 248 bytes coded according to the UTF-8
 // standard.
 const size_t kMaxDeviceNameLength = 248;
@@ skipping 140 matching lines @@
   if (!UserGestureIndicator::consumeUserGesture()) {
     return ScriptPromise::rejectWithDOMException(
         scriptState,
         DOMException::create(
             SecurityError,
             "Must be handling a user gesture to show a permission request."));
   }
 
   if (!m_service) {
     InterfaceProvider* interfaceProvider = nullptr;
-    ExecutionContext* executionContext = scriptState->getExecutionContext();
-    if (executionContext->isDocument()) {
-      Document* document = toDocument(executionContext);
+    if (context->isDocument()) {
+      Document* document = toDocument(context);
       if (document->frame())
         interfaceProvider = document->frame()->interfaceProvider();
     }
 
     if (interfaceProvider)
       interfaceProvider->getInterface(mojo::MakeRequest(&m_service));
 
     if (m_service) {
       // Create an associated interface ptr and pass it to the
       // WebBluetoothService so that it can send us events without us
@@ skipping 10 matching lines @@
   }
 
   // In order to convert the arguments from service names and aliases to just
   // UUIDs, do the following substeps:
   auto deviceOptions = mojom::blink::WebBluetoothRequestDeviceOptions::New();
   convertRequestDeviceOptions(options, deviceOptions, exceptionState);
 
   if (exceptionState.hadException())
     return exceptionState.reject(scriptState);
 
+  // Record the eTLD+1 of the frame using the API.
+  Document* document = toDocument(context);
+  Platform::current()->recordRapporURL("Bluetooth.APIUsage.Origin",
+                                       document->url());
+
   // Subsequent steps are handled in the browser process.
   ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
   ScriptPromise promise = resolver->promise();
 
   service()->RequestDevice(
       std::move(deviceOptions),
       convertToBaseCallback(WTF::bind(&Bluetooth::RequestDeviceCallback,
                                       wrapPersistent(this),
                                       wrapPersistent(resolver))));
   return promise;
@@ skipping 54 matching lines @@
   BluetoothDevice* device = m_deviceInstanceMap.get(id);
   if (!device) {
     device = BluetoothDevice::take(resolver, std::move(devicePtr), this);
     auto result = m_deviceInstanceMap.add(id, device);
     DCHECK(result.isNewEntry);
   }
   return device;
 }
 
 }  // namespace blink