Fixed VM memory leak in AudioSystem JNI interface

The function android_media_AudioSystem_error_callback from AudioSystem
JNI interface is using FindClass function but does not delete the
reference created by VM in this function.
By doing this call, VM will add a local reference in IndirectRefTable
and it's the caller's job to delete this reference.
By not doing this, everytime this callback is called, a new reference is
added and never deleted.
The effect is crashing the VM running system_server:

E/dalvikvm( 3071): JNI ERROR (app bug): local reference table overflow (max=512)
W/dalvikvm( 3071): JNI local reference table (0x732da288) dump:
W/dalvikvm( 3071):   Last 10 entries (of 512):
W/dalvikvm( 3071):       511: 0x42a90008 java.lang.Class<android.os.Parcel>
W/dalvikvm( 3071):       510: 0x4381fd90 android.view.KeyEvent
W/dalvikvm( 3071):       509: 0x439b9808 android.view.KeyEvent
W/dalvikvm( 3071):       508: 0x42d2fe18 java.lang.Class<com.android.server.input.InputManagerService>
W/dalvikvm( 3071):       507: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):       506: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):       505: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):       504: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):       503: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):       502: 0x42ad4298 java.lang.Class<android.media.AudioSystem>
W/dalvikvm( 3071):   Summary:
W/dalvikvm( 3071):       510 of java.lang.Class (3 unique instances)
W/dalvikvm( 3071):         2 of android.view.KeyEvent (2 unique instances)
E/dalvikvm( 3071): Failed adding to JNI local ref table (has 512 entries)
...
E/dalvikvm( 3071): VM aborting

In this case, PID 3071 is system server.

Change-Id: I0c113eb72256984854d59a3ccef11a8d23f96e79
Signed-off-by: Robert Chiras <robert.chiras@intel.com>
Ensure to add persistent apps to LruProcess list on app restart

This change will ensure to add Persistent Apps to mLruProcesses
if not already present while restarting.Previously, on some
occasions, the process was not getting added to the list
resulting in SecurityException as this process was not found
in the mLruProcesses.

Change-Id: I26813a794e01aae316dffd3cf2bb38ab66ac69a9