Revert of Rename kPMColor_SkColorType to kN32_SkColorType.

src/effects/SkBlurImageFilter.cpp

 /*
  * Copyright 2011 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 "SkBitmap.h"
 #include "SkBlurImageFilter.h"
 #include "SkColorPriv.h"
@@ skipping 131 matching lines @@
 
 bool SkBlurImageFilter::onFilterImage(Proxy* proxy,
                                       const SkBitmap& source, const Context& ctx,
                                       SkBitmap* dst, SkIPoint* offset) const {
     SkBitmap src = source;
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
     if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctx, &src, &srcOffset)) {
         return false;
     }
 
-    if (src.colorType() != kN32_SkColorType) {
+    if (src.colorType() != kPMColor_SkColorType) {
         return false;
     }
 
     SkIRect srcBounds, dstBounds;
     if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &srcBounds, &src)) {
         return false;
     }
 
     SkAutoLockPixels alp(src);
     if (!src.getPixels()) {
@@ skipping 121 matching lines @@
                                                              true,
                                                              sigma.x(),
                                                              sigma.y()));
     WrapTexture(tex, rect.width(), rect.height(), result);
     return true;
 #else
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;
 #endif
 }