audio policy: pass session ID to capture activity methods

Indicate the audio session ID when calling getInput(),
startInput(), stopInput(), releaseInput().

Bug: 12378680.
Change-Id: I763793752f93e2f4e1445a5ab217c895af011038
diff --git a/services/audiopolicy/AudioPolicyService.h b/services/audiopolicy/AudioPolicyService.h
index 3769aab..97236e3 100644
--- a/services/audiopolicy/AudioPolicyService.h
+++ b/services/audiopolicy/AudioPolicyService.h
@@ -91,9 +91,12 @@
                                     audio_channel_mask_t channelMask,
                                     int audioSession,
                                     audio_input_flags_t flags);
-    virtual status_t startInput(audio_io_handle_t input);
-    virtual status_t stopInput(audio_io_handle_t input);
-    virtual void releaseInput(audio_io_handle_t input);
+    virtual status_t startInput(audio_io_handle_t input,
+                                audio_session_t session);
+    virtual status_t stopInput(audio_io_handle_t input,
+                               audio_session_t session);
+    virtual void releaseInput(audio_io_handle_t input,
+                              audio_session_t session);
     virtual status_t initStreamVolume(audio_stream_type_t stream,
                                       int indexMin,
                                       int indexMax);