Reland "Add Linux support for the Bluetooth API"

extensions/browser/api/bluetooth/bluetooth_event_router.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 "extensions/browser/api/bluetooth/bluetooth_event_router.h"
 
 #include <map>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 41 matching lines @@
 BluetoothEventRouter::~BluetoothEventRouter() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   if (adapter_.get()) {
     adapter_->RemoveObserver(this);
     adapter_ = nullptr;
   }
   CleanUpAllExtensions();
 }
 
 bool BluetoothEventRouter::IsBluetoothSupported() const {
+#if defined(OS_LINUX)

[ortuno, 2015/11/06 18:15:41]

Don't you need this on BluetoothLowEnergyEventRouter::IsBluetoothSupported() as
well?

[rkc, 2015/11/25 00:48:16]

BluetoothLowEnergy is not supported.

+  return true;
+#endif
   return adapter_.get() ||
          device::BluetoothAdapterFactory::IsBluetoothAdapterAvailable();
 }
 
 void BluetoothEventRouter::GetAdapter(
     const device::BluetoothAdapterFactory::AdapterCallback& callback) {
   if (adapter_.get()) {
     callback.Run(scoped_refptr<device::BluetoothAdapter>(adapter_));
     return;
   }
@@ skipping 382 matching lines @@
 }
 
 void BluetoothEventRouter::OnExtensionUnloaded(
     content::BrowserContext* browser_context,
     const Extension* extension,
     UnloadedExtensionInfo::Reason reason) {
   CleanUpForExtension(extension->id());
 }
 
 }  // namespace extensions