Add appropriate casts for char16_t.

C++11 defines a real char16_t, which is not implicitly convertible to
uint16_t (and by extension jchar). Add casts as needed.

Bug: 18300613
Change-Id: I00752002ef2e938bdb57f70947e8fd53ec103293
diff --git a/core/jni/android_view_KeyCharacterMap.cpp b/core/jni/android_view_KeyCharacterMap.cpp
index 4eed5a7..7653f58 100644
--- a/core/jni/android_view_KeyCharacterMap.cpp
+++ b/core/jni/android_view_KeyCharacterMap.cpp
@@ -150,7 +150,9 @@
         return 0;
     }
 
-    char16_t result = map->getMap()->getMatch(keyCode, chars, size_t(numChars), metaState);
+    char16_t result = map->getMap()->getMatch(
+        keyCode, reinterpret_cast<char16_t*>(chars), size_t(numChars),
+        metaState);
 
     env->ReleasePrimitiveArrayCritical(charsArray, chars, JNI_ABORT);
     return result;
@@ -178,7 +180,9 @@
 
     Vector<KeyEvent> events;
     jobjectArray result = NULL;
-    if (map->getMap()->getEvents(map->getDeviceId(), chars, size_t(numChars), events)) {
+    if (map->getMap()->getEvents(map->getDeviceId(),
+                                 reinterpret_cast<char16_t*>(chars),
+                                 size_t(numChars), events)) {
         result = env->NewObjectArray(jsize(events.size()), gKeyEventClassInfo.clazz, NULL);
         if (result) {
             for (size_t i = 0; i < events.size(); i++) {