transcoder: plumb uid/pid to transcoder createCodec

Instead of using ResourceManagerService::overrideProcessInfo to
override the procinfo of the native MediaTranscodingService,
use the newly added AMediaCodec create methods with UID/PID.
This will allow the codec instance to be attributed to the
actual client (for battery reporting as well resource managerment
purposes), instead of all to media.transcoding.

Plumb uid/pid to transcoder to create the codec with them.

Fix up the unit test after the change.

bug: 159172726
test: transcoder unit tests.
Change-Id: Ie7e6fd813ec53f125590665ab3466758a0fd4601
diff --git a/media/libmediatranscoding/transcoder/MediaTranscoder.cpp b/media/libmediatranscoding/transcoder/MediaTranscoder.cpp
index d89b58f..07df5e0 100644
--- a/media/libmediatranscoding/transcoder/MediaTranscoder.cpp
+++ b/media/libmediatranscoding/transcoder/MediaTranscoder.cpp
@@ -154,11 +154,12 @@
     mCallbacks->onProgressUpdate(this, progress);
 }
 
-MediaTranscoder::MediaTranscoder(const std::shared_ptr<CallbackInterface>& callbacks)
-      : mCallbacks(callbacks) {}
+MediaTranscoder::MediaTranscoder(const std::shared_ptr<CallbackInterface>& callbacks, pid_t pid,
+                                 uid_t uid)
+      : mCallbacks(callbacks), mPid(pid), mUid(uid) {}
 
 std::shared_ptr<MediaTranscoder> MediaTranscoder::create(
-        const std::shared_ptr<CallbackInterface>& callbacks,
+        const std::shared_ptr<CallbackInterface>& callbacks, pid_t pid, uid_t uid,
         const std::shared_ptr<ndk::ScopedAParcel>& pausedState) {
     if (pausedState != nullptr) {
         LOG(INFO) << "Initializing from paused state.";
@@ -168,7 +169,7 @@
         return nullptr;
     }
 
-    return std::shared_ptr<MediaTranscoder>(new MediaTranscoder(callbacks));
+    return std::shared_ptr<MediaTranscoder>(new MediaTranscoder(callbacks, pid, uid));
 }
 
 media_status_t MediaTranscoder::configureSource(int fd) {
@@ -257,7 +258,7 @@
             }
         }
 
-        transcoder = VideoTrackTranscoder::create(shared_from_this());
+        transcoder = VideoTrackTranscoder::create(shared_from_this(), mPid, mUid);
 
         AMediaFormat* mergedFormat =
                 mergeMediaFormats(mSourceTrackFormats[trackIndex].get(), trackFormat);