Maintain call time across SRVCC (2/3).

When an IMS conference call encounters an SRVCC event requiring a
fallback to GSM/CDMA, we need to maintain the call time for the
conference host across this fallback. So, adding a connectTime attribute
in the underlying conference host's connection object which can be used
to account for the call time from the now inactive conference call into
the new call created.

BUG: 21918593
Change-Id: I13e7ae6e31f004e798776c02ac7a6ac09a10f0bd

telecomm/java/android/telecom/ParcelableConnection.java

@@ -44,6 +44,7 @@ public final class ParcelableConnection implements Parcelable {
     private final int mVideoState;
     private final boolean mRingbackRequested;
     private final boolean mIsVoipAudioMode;
+    private final long mConnectTimeMillis;
     private final StatusHints mStatusHints;
     private final DisconnectCause mDisconnectCause;
     private final List<String> mConferenceableConnectionIds;
@@ -62,6 +63,7 @@ public final class ParcelableConnection implements Parcelable {
             int videoState,
             boolean ringbackRequested,
             boolean isVoipAudioMode,
+            long connectTimeMillis,
             StatusHints statusHints,
             DisconnectCause disconnectCause,
             List<String> conferenceableConnectionIds,
@@ -77,6 +79,7 @@ public final class ParcelableConnection implements Parcelable {
         mVideoState = videoState;
         mRingbackRequested = ringbackRequested;
         mIsVoipAudioMode = isVoipAudioMode;
+        mConnectTimeMillis = connectTimeMillis;
         mStatusHints = statusHints;
         mDisconnectCause = disconnectCause;
         mConferenceableConnectionIds = conferenceableConnectionIds;
@@ -128,6 +131,10 @@ public final class ParcelableConnection implements Parcelable {
         return mIsVoipAudioMode;
     }
 
+    public long getConnectTimeMillis() {
+        return mConnectTimeMillis;
+    }
+
     public final StatusHints getStatusHints() {
         return mStatusHints;
     }
@@ -176,6 +183,7 @@ public final class ParcelableConnection implements Parcelable {
             int videoState = source.readInt();
             boolean ringbackRequested = source.readByte() == 1;
             boolean audioModeIsVoip = source.readByte() == 1;
+            long connectTimeMillis = source.readLong();
             StatusHints statusHints = source.readParcelable(classLoader);
             DisconnectCause disconnectCause = source.readParcelable(classLoader);
             List<String> conferenceableConnectionIds = new ArrayList<>();
@@ -194,6 +202,7 @@ public final class ParcelableConnection implements Parcelable {
                     videoState,
                     ringbackRequested,
                     audioModeIsVoip,
+                    connectTimeMillis,
                     statusHints,
                     disconnectCause,
                     conferenceableConnectionIds,
@@ -227,6 +236,7 @@ public final class ParcelableConnection implements Parcelable {
         destination.writeInt(mVideoState);
         destination.writeByte((byte) (mRingbackRequested ? 1 : 0));
         destination.writeByte((byte) (mIsVoipAudioMode ? 1 : 0));
+        destination.writeLong(mConnectTimeMillis);
         destination.writeParcelable(mStatusHints, 0);
         destination.writeParcelable(mDisconnectCause, 0);
         destination.writeStringList(mConferenceableConnectionIds);