Camera API 2, Device 2/3: Implement idle and shutter callbacks

- Update callback Binder interface
- Rename frameId to be requestId to be consistent and disambiguate
  from frameNumber.
- Implement shutter callback from HAL2/3 notify()
  - Add in-flight tracking to HAL2
  - Add requestId to in-flight tracking
  - Report requestId from shutter callback
- Implement idle callback from HAL3 process_capture_result
  - Add new idle tracker thread
  - Update all idle waiting to use the tracker
  - Add reporting from request thread, all streams to tracker
  - Remove existing idle waiting infrastructure

Bug: 10549462
Change-Id: I867bfc248e3848c50e71527e3561fe92dc037958
diff --git a/camera/ProCamera.cpp b/camera/ProCamera.cpp
index 577c760..ba5a48c 100644
--- a/camera/ProCamera.cpp
+++ b/camera/ProCamera.cpp
@@ -90,8 +90,8 @@
     }
 }
 
-void ProCamera::onResultReceived(int32_t frameId, camera_metadata* result) {
-    ALOGV("%s: frameId = %d, result = %p", __FUNCTION__, frameId, result);
+void ProCamera::onResultReceived(int32_t requestId, camera_metadata* result) {
+    ALOGV("%s: requestId = %d, result = %p", __FUNCTION__, requestId, result);
 
     sp<ProCameraListener> listener;
     {
@@ -112,7 +112,7 @@
     result = tmp.release();
 
     if (listener != NULL) {
-        listener->onResultReceived(frameId, result);
+        listener->onResultReceived(requestId, result);
     } else {
         free_camera_metadata(result);
     }