diff --git a/drm/libmediadrm/DrmHalHidl.cpp b/drm/libmediadrm/DrmHalHidl.cpp
index c38dbef..ea99483 100644
--- a/drm/libmediadrm/DrmHalHidl.cpp
+++ b/drm/libmediadrm/DrmHalHidl.cpp
@@ -513,10 +513,14 @@
         if (mimeType == "") {
             // isCryptoSchemeSupported(uuid)
             *isSupported = true;
-        } else {
-            // isCryptoSchemeSupported(uuid, mimeType)
-            *isSupported = factory->isContentTypeSupported(mimeType.string());
+            return OK;
         }
+        // isCryptoSchemeSupported(uuid, mimeType)
+        auto hResult = factory->isContentTypeSupported(mimeType.string());
+        if (!hResult.isOk()) {
+            return DEAD_OBJECT;
+        }
+        *isSupported = hResult;
         return OK;
     } else if (mimeType == "") {
         return BAD_VALUE;
@@ -526,8 +530,12 @@
     if (factoryV1_2 == NULL) {
         return ERROR_UNSUPPORTED;
     } else {
-        *isSupported = factoryV1_2->isCryptoSchemeSupported_1_2(uuid, mimeType.string(),
+        auto hResult = factoryV1_2->isCryptoSchemeSupported_1_2(uuid, mimeType.string(),
                                                                 toHidlSecurityLevel(level));
+        if (!hResult.isOk()) {
+            return DEAD_OBJECT;
+        }
+        *isSupported = hResult;
         return OK;
     }
 }
@@ -537,7 +545,8 @@
     Mutex::Autolock autoLock(mLock);
     *isSupported = false;
     for (ssize_t i = mFactories.size() - 1; i >= 0; i--) {
-        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+        auto hResult = mFactories[i]->isCryptoSchemeSupported(uuid);
+        if (hResult.isOk() && hResult) {
             return matchMimeTypeAndSecurityLevel(mFactories[i], uuid, mimeType, level, isSupported);
         }
     }
diff --git a/media/janitors/media_solutions_OWNERS b/media/janitors/media_solutions_OWNERS
index 8dc1c7b..e0c87f7 100644
--- a/media/janitors/media_solutions_OWNERS
+++ b/media/janitors/media_solutions_OWNERS
@@ -1,10 +1,21 @@
 # Bug component: 1344
 # go/android-fwk-media-solutions for info on areas of ownership.
 
-# Main owners:
+# MediaRouter and native mirroring only:
+adadukin@google.com
 aquilescanta@google.com
-krocard@google.com
+bishoygendy@google.com
+ivanbuper@google.com
 
-# In case of emergency:
-andrewlewis@google.com #{LAST_RESORT_SUGGESTION}
-olly@google.com #{LAST_RESORT_SUGGESTION}
+# MediaMuxer, MediaRecorder, and seamless transcoding only:
+andrewlewis@google.com
+claincly@google.com
+
+# Everything in go/android-fwk-media-solutions not covered above:
+bachinger@google.com
+christosts@google.com
+ibaker@google.com
+michaelkatz@google.com
+rohks@google.com
+tianyifeng@google.com
+tonihei@google.com
diff --git a/services/audiopolicy/engine/common/include/VolumeGroup.h b/services/audiopolicy/engine/common/include/VolumeGroup.h
index 5378f64..f40ab1c 100644
--- a/services/audiopolicy/engine/common/include/VolumeGroup.h
+++ b/services/audiopolicy/engine/common/include/VolumeGroup.h
@@ -39,7 +39,7 @@
     VolumeCurves *getVolumeCurves() { return &mGroupVolumeCurves; }
 
     void addSupportedAttributes(const audio_attributes_t &attr);
-    AttributesVector getSupportedAttributes() const { return mGroupVolumeCurves.getAttributes(); }
+    AttributesVector getSupportedAttributes() const;
 
     void addSupportedStream(audio_stream_type_t stream);
     StreamTypeVector getStreamTypes() const { return mGroupVolumeCurves.getStreamTypes(); }
diff --git a/services/audiopolicy/engine/common/src/VolumeGroup.cpp b/services/audiopolicy/engine/common/src/VolumeGroup.cpp
index e189807..f5ffbba 100644
--- a/services/audiopolicy/engine/common/src/VolumeGroup.cpp
+++ b/services/audiopolicy/engine/common/src/VolumeGroup.cpp
@@ -37,6 +37,17 @@
 {
 }
 
+// Used for introspection, e.g. JAVA
+AttributesVector VolumeGroup::getSupportedAttributes() const
+{
+    AttributesVector supportedAttributes = {};
+    for (auto &aa : mGroupVolumeCurves.getAttributes()) {
+        aa.source = AUDIO_SOURCE_INVALID;
+        supportedAttributes.push_back(aa);
+    }
+    return supportedAttributes;
+}
+
 void VolumeGroup::dump(String8 *dst, int spaces) const
 {
     dst->appendFormat("\n%*s-%s (id: %d)\n", spaces, "", mName.c_str(), mId);