Change SkTime::GetMSecs to double; ensure values stored in SkMSec do not overflow.

src/animator/SkAnimateMaker.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkAnimateMaker.h"
 #include "SkAnimator.h"
 #include "SkAnimatorScript.h"
 #include "SkDisplayable.h"
 #include "SkDisplayApply.h"
 #include "SkDisplayList.h"
 #include "SkDisplayMovie.h"
 #include "SkDisplayType.h"
 #include "SkExtras.h"
 #include "SkMemberInfo.h"
 #include "SkStream.h"
 #include "SkSystemEventTypes.h"
 #include "SkTime.h"
 
 class DefaultTimeline : public SkAnimator::Timeline {
     virtual SkMSec getMSecs() const {
-        return SkTime::GetMSecs();
+        return SkEvent::GetMSecsSinceStartup();
     }
 } gDefaultTimeline;
 
 SkAnimateMaker::SkAnimateMaker(SkAnimator* animator, SkCanvas* canvas, SkPaint* paint)
     : fActiveEvent(nullptr), fAdjustedStart(0), fCanvas(canvas), fEnableTime(0),
         fHostEventSinkID(0), fMinimumInterval((SkMSec) -1), fPaint(paint), fParentMaker(nullptr),
         fTimeline(&gDefaultTimeline), fInInclude(false), fInMovie(false),
         fFirstScriptError(false), fLoaded(false), fIDs(256), fAnimator(animator)
 {
     fScreenplay.time = 0;
@@ skipping 326 matching lines @@
 }
 
 bool SkAnimateMaker::GetStep(const char* token, size_t len, void* stepPtr, SkScriptValue* value) {
     if (SK_LITERAL_STR_EQUAL("step", token, len)) {
         value->fOperand.fS32 = *(int32_t*) stepPtr;
         value->fType = SkType_Int;
         return true;
     }
     return false;
 }