Remove references to SkMSec type

Skia wants to remove this from the public API:
https://skia-review.googlesource.com/c/skia/+/897150

Change-Id: Idef3d1d79014a10cfd1f1e2ad740666bebe6d3cf
Flag: EXEMPT refactor
diff --git a/libs/hwui/jni/MovieImpl.cpp b/libs/hwui/jni/MovieImpl.cpp
index abb75fa..a31a15f 100644
--- a/libs/hwui/jni/MovieImpl.cpp
+++ b/libs/hwui/jni/MovieImpl.cpp
@@ -11,7 +11,7 @@
 
 // We should never see this in normal operation since our time values are
 // 0-based. So we use it as a sentinel.
-#define UNINITIALIZED_MSEC ((SkMSec)-1)
+#define UNINITIALIZED_MSEC ((Movie::MSec)-1)
 
 Movie::Movie()
 {
@@ -26,7 +26,7 @@
         memset(&fInfo, 0, sizeof(fInfo));   // failure
 }
 
-SkMSec Movie::duration()
+Movie::MSec Movie::duration()
 {
     this->ensureInfo();
     return fInfo.fDuration;
@@ -50,9 +50,9 @@
     return fInfo.fIsOpaque;
 }
 
-bool Movie::setTime(SkMSec time)
+bool Movie::setTime(Movie::MSec time)
 {
-    SkMSec dur = this->duration();
+    Movie::MSec dur = this->duration();
     if (time > dur)
         time = dur;