Add plumbing for volume mute key.

Full support for the volume mute key will be implemented in a
later change.

Bug: 2912307
Change-Id: I98c27d6360f159c8b7447e04b45f442eff87b38a
diff --git a/libs/ui/Input.cpp b/libs/ui/Input.cpp
index 811edaf..944a79b 100644
--- a/libs/ui/Input.cpp
+++ b/libs/ui/Input.cpp
@@ -33,6 +33,7 @@
         case AKEYCODE_ENDCALL:
         case AKEYCODE_VOLUME_UP:
         case AKEYCODE_VOLUME_DOWN:
+        case AKEYCODE_VOLUME_MUTE:
         case AKEYCODE_POWER:
         case AKEYCODE_CAMERA:
         case AKEYCODE_HEADSETHOOK:
@@ -40,11 +41,14 @@
         case AKEYCODE_NOTIFICATION:
         case AKEYCODE_FOCUS:
         case AKEYCODE_SEARCH:
+        case AKEYCODE_MEDIA_PLAY:
+        case AKEYCODE_MEDIA_PAUSE:
         case AKEYCODE_MEDIA_PLAY_PAUSE:
         case AKEYCODE_MEDIA_STOP:
         case AKEYCODE_MEDIA_NEXT:
         case AKEYCODE_MEDIA_PREVIOUS:
         case AKEYCODE_MEDIA_REWIND:
+        case AKEYCODE_MEDIA_RECORD:
         case AKEYCODE_MEDIA_FAST_FORWARD:
         case AKEYCODE_MUTE:
             return true;
@@ -67,14 +71,18 @@
         case AKEYCODE_ENDCALL:
         case AKEYCODE_VOLUME_UP:
         case AKEYCODE_VOLUME_DOWN:
+        case AKEYCODE_VOLUME_MUTE:
         case AKEYCODE_MUTE:
         case AKEYCODE_POWER:
         case AKEYCODE_HEADSETHOOK:
+        case AKEYCODE_MEDIA_PLAY:
+        case AKEYCODE_MEDIA_PAUSE:
         case AKEYCODE_MEDIA_PLAY_PAUSE:
         case AKEYCODE_MEDIA_STOP:
         case AKEYCODE_MEDIA_NEXT:
         case AKEYCODE_MEDIA_PREVIOUS:
         case AKEYCODE_MEDIA_REWIND:
+        case AKEYCODE_MEDIA_RECORD:
         case AKEYCODE_MEDIA_FAST_FORWARD:
         case AKEYCODE_CAMERA:
         case AKEYCODE_FOCUS: