Revert of Revert of stop calling SkScalarDiv

src/pdf/SkPDFGraphicState.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkData.h"
 #include "SkLazyPtr.h"
 #include "SkPDFCanon.h"
@@ skipping 183 matching lines @@
 SkPDFDict* SkPDFGraphicState::GetNoSMaskGraphicState() {
     return SkRef(noSMaskGraphicState.get());
 }
 
 void SkPDFGraphicState::emitObject(SkWStream* stream,
                                    const SkPDFObjNumMap& objNumMap,
                                    const SkPDFSubstituteMap& substitutes) {
     SkAutoTUnref<SkPDFDict> dict(SkNEW_ARGS(SkPDFDict, ("ExtGState")));
     dict->insertName("Type", "ExtGState");
 
-    SkScalar alpha = SkScalarDiv(fAlpha, 0xFF);
+    SkScalar alpha = SkIntToScalar(fAlpha) / 0xFF;
     dict->insertScalar("CA", alpha);
     dict->insertScalar("ca", alpha);
 
     SkPaint::Cap strokeCap = (SkPaint::Cap)fStrokeCap;
     SkPaint::Join strokeJoin = (SkPaint::Join)fStrokeJoin;
     SkXfermode::Mode xferMode = (SkXfermode::Mode)fMode;
 
     SK_COMPILE_ASSERT(SkPaint::kButt_Cap == 0, paint_cap_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kRound_Cap == 1, paint_cap_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kSquare_Cap == 2, paint_cap_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kCapCount == 3, paint_cap_mismatch);
     SkASSERT(strokeCap >= 0 && strokeCap <= 2);
     dict->insertInt("LC", strokeCap);
 
     SK_COMPILE_ASSERT(SkPaint::kMiter_Join == 0, paint_join_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kRound_Join == 1, paint_join_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kBevel_Join == 2, paint_join_mismatch);
     SK_COMPILE_ASSERT(SkPaint::kJoinCount == 3, paint_join_mismatch);
     SkASSERT(strokeJoin >= 0 && strokeJoin <= 2);
     dict->insertInt("LJ", strokeJoin);
 
     dict->insertScalar("LW", fStrokeWidth);
     dict->insertScalar("ML", fStrokeMiter);
     dict->insertBool("SA", true);  // SA = Auto stroke adjustment.
     dict->insertName("BM", as_blend_mode(xferMode));
     dict->emitObject(stream, objNumMap, substitutes);
 }