Revert of Rename kPMColor_SkColorType to kN32_SkColorType.

src/effects/SkDisplacementMapEffect.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDisplacementMapEffect.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 187 matching lines @@
                                             SkBitmap* dst,
                                             SkIPoint* offset) const {
     SkBitmap displ = src, color = src;
     const SkImageFilter* colorInput = getColorInput();
     const SkImageFilter* displInput = getDisplacementInput();
     SkIPoint colorOffset = SkIPoint::Make(0, 0), displOffset = SkIPoint::Make(0, 0);
     if ((colorInput && !colorInput->filterImage(proxy, src, ctx, &color, &colorOffset)) ||
         (displInput && !displInput->filterImage(proxy, src, ctx, &displ, &displOffset))) {
         return false;
     }
-    if ((displ.colorType() != kN32_SkColorType) ||
-        (color.colorType() != kN32_SkColorType)) {
+    if ((displ.colorType() != kPMColor_SkColorType) ||
+        (color.colorType() != kPMColor_SkColorType)) {
         return false;
     }
     SkIRect bounds;
     // Since computeDisplacement does bounds checking on color pixel access, we don't need to pad
     // the color bitmap to bounds here.
     if (!this->applyCropRect(ctx, color, colorOffset, &bounds)) {
         return false;
     }
     SkIRect displBounds;
     if (!this->applyCropRect(ctx, proxy, displ, &displOffset, &displBounds, &displ)) {
@@ skipping 384 matching lines @@
                                                         const GrGLCaps&) {
     const GrDisplacementMapEffect& displacementMap =
         drawEffect.castEffect<GrDisplacementMapEffect>();
 
     EffectKey xKey = displacementMap.xChannelSelector();
     EffectKey yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBits;
 
     return xKey | yKey;
 }
 #endif