Fix a lint issue with UsbMidiDeviceAndroid.java.

Currently, the lint warns at:
Error: Call requires API level 18 (current min is 14):
    android.hardware.usb.UsbDeviceConnection#bulkTransfer [NewApi]

So we need to add @TargetApi to suppress this lint error.

BUG=327768

Review URL: https://codereview.chromium.org/276943002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269528 0039d316-1c4b-4281-b951-d872f2087c98

media/base/android/java/src/org/chromium/media/UsbMidiDeviceAndroid.java

@@ -4,6 +4,7 @@
 
 package org.chromium.media;
 
+import android.annotation.TargetApi;
 import android.hardware.usb.UsbConstants;
 import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbDeviceConnection;
@@ -11,6 +12,7 @@ import android.hardware.usb.UsbEndpoint;
 import android.hardware.usb.UsbInterface;
 import android.hardware.usb.UsbManager;
 import android.hardware.usb.UsbRequest;
+import android.os.Build;
 import android.os.Handler;
 import android.util.SparseArray;
 
@@ -186,6 +188,7 @@ class UsbMidiDeviceAndroid {
      * @param endpointNumber The endpoint number of the destination endpoint.
      * @param bs The data to be sent.
      */
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
     @CalledByNative
     void send(int endpointNumber, byte[] bs) {
         if (mIsClosed) {