Remove implicit conversions from scoped_refptr to T* in device/

This patch was generated by running the rewrite_scoped_refptr clang tool
on a Mac build.

BUG=110610

Review URL: https://codereview.chromium.org/584083002

Cr-Commit-Position: refs/heads/master@{#295732}

device/bluetooth/bluetooth_socket_mac.mm

@@ -762,7 +762,7 @@ BluetoothSDPServiceRecordHandle RegisterL2capService(
   // multiple write operations if buffer_size > mtu.
   uint16_t mtu = channel_->GetOutgoingMTU();
   scoped_refptr<net::DrainableIOBuffer> send_buffer(
-      new net::DrainableIOBuffer(buffer, buffer_size));
+      new net::DrainableIOBuffer(buffer.get(), buffer_size));
   while (send_buffer->BytesRemaining() > 0) {
     int byte_count = send_buffer->BytesRemaining();
     if (byte_count > mtu)

device/hid/hid_service_mac.cc

@@ -147,7 +147,7 @@ void GetCollectionInfos(IOHIDDeviceRef device,
 HidServiceMac::HidServiceMac() {
   DCHECK(thread_checker_.CalledOnValidThread());
   message_loop_ = base::MessageLoopProxy::current();
-  DCHECK(message_loop_);
+  DCHECK(message_loop_.get());
   hid_manager_.reset(IOHIDManagerCreate(NULL, 0));
   if (!hid_manager_) {
     LOG(ERROR) << "Failed to initialize HidManager";