diff --git a/libs/hwui/SkiaInterpolator.cpp b/libs/hwui/SkiaInterpolator.cpp
index 5a45ad9..8deac61 100644
--- a/libs/hwui/SkiaInterpolator.cpp
+++ b/libs/hwui/SkiaInterpolator.cpp
@@ -47,6 +47,8 @@
     return static_cast<Dot14>(x * Dot14_ONE);
 }
 
+using MSec = uint32_t;  // millisecond duration
+
 static float SkUnitCubicInterp(float value, float bx, float by, float cx, float cy) {
     // pin to the unit-square, and convert to 2.14
     Dot14 x = pin_and_convert(value);
@@ -120,7 +122,7 @@
     Totaling fElemCount+2 entries per keyframe
 */
 
-bool SkiaInterpolatorBase::getDuration(SkMSec* startTime, SkMSec* endTime) const {
+bool SkiaInterpolatorBase::getDuration(MSec* startTime, MSec* endTime) const {
     if (fFrameCount == 0) {
         return false;
     }
@@ -134,7 +136,7 @@
     return true;
 }
 
-float SkiaInterpolatorBase::ComputeRelativeT(SkMSec time, SkMSec prevTime, SkMSec nextTime,
+float SkiaInterpolatorBase::ComputeRelativeT(MSec time, MSec prevTime, MSec nextTime,
                                              const float blend[4]) {
     LOG_FATAL_IF(time < prevTime || time > nextTime);
 
@@ -144,7 +146,7 @@
 
 // Returns the index of where the item is or the bit not of the index
 // where the item should go in order to keep arr sorted in ascending order.
-int SkiaInterpolatorBase::binarySearch(const SkTimeCode* arr, int count, SkMSec target) {
+int SkiaInterpolatorBase::binarySearch(const SkTimeCode* arr, int count, MSec target) {
     if (count <= 0) {
         return ~0;
     }
@@ -154,7 +156,7 @@
 
     while (lo < hi) {
         int mid = (hi + lo) / 2;
-        SkMSec elem = arr[mid].fTime;
+        MSec elem = arr[mid].fTime;
         if (elem == target) {
             return mid;
         } else if (elem < target) {
@@ -171,21 +173,21 @@
     return ~(lo + 1);
 }
 
-SkiaInterpolatorBase::Result SkiaInterpolatorBase::timeToT(SkMSec time, float* T, int* indexPtr,
+SkiaInterpolatorBase::Result SkiaInterpolatorBase::timeToT(MSec time, float* T, int* indexPtr,
                                                            bool* exactPtr) const {
     LOG_FATAL_IF(fFrameCount <= 0);
     Result result = kNormal_Result;
     if (fRepeat != 1.0f) {
-        SkMSec startTime = 0, endTime = 0;  // initialize to avoid warning
+        MSec startTime = 0, endTime = 0;  // initialize to avoid warning
         this->getDuration(&startTime, &endTime);
-        SkMSec totalTime = endTime - startTime;
-        SkMSec offsetTime = time - startTime;
+        MSec totalTime = endTime - startTime;
+        MSec offsetTime = time - startTime;
         endTime = SkScalarFloorToInt(fRepeat * totalTime);
         if (offsetTime >= endTime) {
             float fraction = SkScalarFraction(fRepeat);
             offsetTime = fraction == 0 && fRepeat > 0
                                  ? totalTime
-                                 : (SkMSec)SkScalarFloorToInt(fraction * totalTime);
+                                 : (MSec)SkScalarFloorToInt(fraction * totalTime);
             result = kFreezeEnd_Result;
         } else {
             int mirror = fFlags & kMirror;
@@ -217,11 +219,11 @@
     }
     LOG_FATAL_IF(index >= fFrameCount);
     const SkTimeCode* nextTime = &fTimes[index];
-    SkMSec nextT = nextTime[0].fTime;
+    MSec nextT = nextTime[0].fTime;
     if (exact) {
         *T = 0;
     } else {
-        SkMSec prevT = nextTime[-1].fTime;
+        MSec prevT = nextTime[-1].fTime;
         *T = ComputeRelativeT(time, prevT, nextT, nextTime[-1].fBlend);
     }
     *indexPtr = index;
@@ -251,7 +253,7 @@
 
 static const float gIdentityBlend[4] = {0.33333333f, 0.33333333f, 0.66666667f, 0.66666667f};
 
-bool SkiaInterpolator::setKeyFrame(int index, SkMSec time, const float values[],
+bool SkiaInterpolator::setKeyFrame(int index, MSec time, const float values[],
                                    const float blend[4]) {
     LOG_FATAL_IF(values == nullptr);
 
@@ -272,7 +274,7 @@
     return success;
 }
 
-SkiaInterpolator::Result SkiaInterpolator::timeToValues(SkMSec time, float values[]) const {
+SkiaInterpolator::Result SkiaInterpolator::timeToValues(MSec time, float values[]) const {
     float T;
     int index;
     bool exact;
diff --git a/libs/hwui/jni/GIFMovie.cpp b/libs/hwui/jni/GIFMovie.cpp
index ae6ac4c..6c82aa1 100644
--- a/libs/hwui/jni/GIFMovie.cpp
+++ b/libs/hwui/jni/GIFMovie.cpp
@@ -30,7 +30,7 @@
 
 protected:
     virtual bool onGetInfo(Info*);
-    virtual bool onSetTime(SkMSec);
+    virtual bool onSetTime(Movie::MSec);
     virtual bool onGetBitmap(SkBitmap*);
 
 private:
@@ -72,7 +72,7 @@
         DGifCloseFile(fGIF, nullptr);
 }
 
-static SkMSec savedimage_duration(const SavedImage* image)
+static Movie::MSec savedimage_duration(const SavedImage* image)
 {
     for (int j = 0; j < image->ExtensionBlockCount; j++)
     {
@@ -91,7 +91,7 @@
     if (nullptr == fGIF)
         return false;
 
-    SkMSec dur = 0;
+    Movie::MSec dur = 0;
     for (int i = 0; i < fGIF->ImageCount; i++)
         dur += savedimage_duration(&fGIF->SavedImages[i]);
 
@@ -102,12 +102,12 @@
     return true;
 }
 
-bool GIFMovie::onSetTime(SkMSec time)
+bool GIFMovie::onSetTime(Movie::MSec time)
 {
     if (nullptr == fGIF)
         return false;
 
-    SkMSec dur = 0;
+    Movie::MSec dur = 0;
     for (int i = 0; i < fGIF->ImageCount; i++)
     {
         dur += savedimage_duration(&fGIF->SavedImages[i]);
diff --git a/libs/hwui/jni/Movie.h b/libs/hwui/jni/Movie.h
index 02113dd..d633d93 100644
--- a/libs/hwui/jni/Movie.h
+++ b/libs/hwui/jni/Movie.h
@@ -19,6 +19,8 @@
 
 class Movie : public SkRefCnt {
 public:
+    using MSec = uint32_t; // millisecond duration
+
     /** Try to create a movie from the stream. If the stream format is not
         supported, return NULL.
     */
@@ -36,7 +38,7 @@
     */
     static Movie* DecodeMemory(const void* data, size_t length);
 
-    SkMSec  duration();
+    MSec    duration();
     int     width();
     int     height();
     int     isOpaque();
@@ -46,21 +48,21 @@
         bitmap/frame from the previous state (i.e. true means you need to
         redraw).
     */
-    bool setTime(SkMSec);
+    bool setTime(MSec);
 
     // return the right bitmap for the current time code
     const SkBitmap& bitmap();
 
 protected:
     struct Info {
-        SkMSec  fDuration;
+        MSec    fDuration;
         int     fWidth;
         int     fHeight;
         bool    fIsOpaque;
     };
 
     virtual bool onGetInfo(Info*) = 0;
-    virtual bool onSetTime(SkMSec) = 0;
+    virtual bool onSetTime(MSec) = 0;
     virtual bool onGetBitmap(SkBitmap*) = 0;
 
     // visible for subclasses
@@ -68,7 +70,7 @@
 
 private:
     Info        fInfo;
-    SkMSec      fCurrTime;
+    MSec        fCurrTime;
     SkBitmap    fBitmap;
     bool        fNeedBitmap;
 
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;