libmediaplayerservice: unused argument warning messages

Change-Id: I7dbf62858114ac9b8de6d7b66cc00e002769a5cf
diff --git a/media/libmediaplayerservice/MediaPlayerFactory.cpp b/media/libmediaplayerservice/MediaPlayerFactory.cpp
index 90aed39..09e6976 100644
--- a/media/libmediaplayerservice/MediaPlayerFactory.cpp
+++ b/media/libmediaplayerservice/MediaPlayerFactory.cpp
@@ -170,11 +170,11 @@
 class StagefrightPlayerFactory :
     public MediaPlayerFactory::IFactory {
   public:
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                int fd,
                                int64_t offset,
-                               int64_t length,
-                               float curScore) {
+                               int64_t /*length*/,
+                               float /*curScore*/) {
         char buf[20];
         lseek(fd, offset, SEEK_SET);
         read(fd, buf, sizeof(buf));
@@ -197,7 +197,7 @@
 
 class NuPlayerFactory : public MediaPlayerFactory::IFactory {
   public:
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                const char* url,
                                float curScore) {
         static const float kOurScore = 0.8;
@@ -229,9 +229,9 @@
         return 0.0;
     }
 
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
-                               const sp<IStreamSource> &source,
-                               float curScore) {
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
+                               const sp<IStreamSource>& /*source*/,
+                               float /*curScore*/) {
         return 1.0;
     }
 
@@ -243,7 +243,7 @@
 
 class SonivoxPlayerFactory : public MediaPlayerFactory::IFactory {
   public:
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                const char* url,
                                float curScore) {
         static const float kOurScore = 0.4;
@@ -274,7 +274,7 @@
         return 0.0;
     }
 
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                int fd,
                                int64_t offset,
                                int64_t length,
@@ -312,9 +312,9 @@
 
 class TestPlayerFactory : public MediaPlayerFactory::IFactory {
   public:
-    virtual float scoreFactory(const sp<IMediaPlayer>& client,
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                const char* url,
-                               float curScore) {
+                               float /*curScore*/) {
         if (TestPlayerStub::canBeUsed(url)) {
             return 1.0;
         }