NuPlayer: merge start() and resume().

NuPlayerDriver: allow seekTo called in STOPPED_AND_PREPARED state.

Bug: 18127606
Change-Id: I92ff9f7e0a176c434202762d30966d8c4643d1ef
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index ab46074..b9a1a6c 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -239,16 +239,24 @@
             // fall through
         }
 
+        case STATE_PAUSED:
+        case STATE_STOPPED_AND_PREPARED:
+        {
+            if (mAtEOS && mStartupSeekTimeUs < 0) {
+                mStartupSeekTimeUs = 0;
+                mPositionUs = -1;
+            }
+
+            // fall through
+        }
+
         case STATE_PREPARED:
         {
             mAtEOS = false;
             mPlayer->start();
 
             if (mStartupSeekTimeUs >= 0) {
-                if (mStartupSeekTimeUs > 0) {
-                    mPlayer->seekToAsync(mStartupSeekTimeUs);
-                }
-
+                mPlayer->seekToAsync(mStartupSeekTimeUs);
                 mStartupSeekTimeUs = -1;
             }
             break;
@@ -264,20 +272,6 @@
             break;
         }
 
-        case STATE_PAUSED:
-        case STATE_STOPPED_AND_PREPARED:
-        {
-            if (mAtEOS) {
-                mPlayer->seekToAsync(0);
-                mAtEOS = false;
-                mPlayer->resume();
-                mPositionUs = -1;
-            } else {
-                mPlayer->resume();
-            }
-            break;
-        }
-
         default:
             return INVALID_OPERATION;
     }
@@ -348,6 +342,7 @@
 
     switch (mState) {
         case STATE_PREPARED:
+        case STATE_STOPPED_AND_PREPARED:
         {
             mStartupSeekTimeUs = seekTimeUs;
             // pretend that the seek completed. It will actually happen when starting playback.