bluetooth: Initial WebBluetooth & WebBluetoothError.

Source/modules/bluetooth/BluetoothDiscovery.cpp

Index: Source/modules/bluetooth/BluetoothDiscovery.cpp
diff --git a/Source/modules/bluetooth/BluetoothDiscovery.cpp b/Source/modules/bluetooth/BluetoothDiscovery.cpp
index 7f982a751992c7625dd7c2f2e44fac41507404ca..f2ac3dfc96c74bab0a8371c5b58608ad7b0e925d 100644
--- a/Source/modules/bluetooth/BluetoothDiscovery.cpp
+++ b/Source/modules/bluetooth/BluetoothDiscovery.cpp
@@ -5,16 +5,37 @@
 #include "config.h"
 #include "modules/bluetooth/BluetoothDiscovery.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/ExceptionCode.h"
+#include "modules/bluetooth/BluetoothError.h"
+#include "modules/bluetooth/testing/BluetoothMock.h"
+#include "public/platform/Platform.h"
 
 namespace blink {
 
 ScriptPromise BluetoothDiscovery::requestDevice(ScriptState* scriptState)
 {
-    // FIXME: Implement requestDevice: http://crbug.com/420284.
-    return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
+    WebBluetooth* webbluetooth = m_bluetoothMock ? m_bluetoothMock : Platform::current()->bluetooth();

[haraken, 2014/10/18 11:25:56]

Help me understand: What is this doing? Who sets the platform's bluetooth?

[scheib, 2014/10/19 03:54:21]

The platform should provide the WebBluetooth interface, which implements the
platform's support of bluetooth device access (later, also additional interfaces
for platform representations of devices and their services).

For layout tests of the Blink module, the platform is mocked out, and the
m_bluetoothMock member will be set to provide a mock implementation of what the
platform would do. The mock is configurable by windows.internals.methods.

+    if (!webbluetooth)
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
+
+    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+    webbluetooth->requestDevice(new CallbackPromiseAdapter<void, BluetoothError>(resolver));
+    return promise;
+}
+
+void BluetoothDiscovery::resetBluetoothMockForTesting()
+{
+    m_bluetoothMock = new BluetoothMock();
+}
+
+void BluetoothDiscovery::trace(Visitor* visitor)
+{
+    visitor->trace(m_bluetoothMock);
 }
 
 } // namespace blink