audio policy: extend API used to silence capture from a given app

In preparation for concurrent capture policy, extend current audio policy
interface setRecordSilenced(uid...) to a more generic API setAppState(uid...)

Bug: 111438757
Test: CTS test AudioRecord.testRecordNoDataForIdleUids
Change-Id: Idba540e2724a6c71ec275a5ff73c312e5b6040a4
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index d118459..e9e1a22 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -3715,11 +3715,13 @@
     return profileUpdated ? NO_ERROR : INVALID_OPERATION;
 }
 
-void AudioPolicyManager::setRecordSilenced(uid_t uid, bool silenced)
+void AudioPolicyManager::setAppState(uid_t uid, app_state_t state)
 {
+    Vector<sp<AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+    bool silenced = state == APP_STATE_IDLE;
+
     ALOGV("AudioPolicyManager:setRecordSilenced(uid:%d, silenced:%d)", uid, silenced);
 
-    Vector<sp<AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
     for (size_t i = 0; i < activeInputs.size(); i++) {
         sp<AudioInputDescriptor> activeDesc = activeInputs[i];
         RecordClientVector clients = activeDesc->clientsList(true /*activeOnly*/);