Fix time-related ScaleGestureDetector methods

Bug 7626515

Change-Id: Ie7abf9c166284a74b4e7bcf9de25520cf08e3b2d

Author: adamp

core/java/android/view/ScaleGestureDetector.java

@@ -259,6 +259,8 @@ public boolean onTouchEvent(MotionEvent event) {
             mInputEventConsistencyVerifier.onTouchEvent(event, 0);
         }
 
+        mCurrTime = event.getEventTime();
+
         final int action = event.getActionMasked();
 
         final boolean streamComplete = action == MotionEvent.ACTION_UP ||
@@ -341,6 +343,7 @@ public boolean onTouchEvent(MotionEvent event) {
             mPrevSpanX = mCurrSpanX = spanX;
             mPrevSpanY = mCurrSpanY = spanY;
             mPrevSpan = mCurrSpan = span;
+            mPrevTime = mCurrTime;
             mInProgress = mListener.onScaleBegin(this);
         }
 
@@ -359,6 +362,7 @@ public boolean onTouchEvent(MotionEvent event) {
                 mPrevSpanX = mCurrSpanX;
                 mPrevSpanY = mCurrSpanY;
                 mPrevSpan = mCurrSpan;
+                mPrevTime = mCurrTime;
             }
         }