Fixed bad bitmap size crashes

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 141 matching lines @@
 
     SkIRect srcBounds, dstBounds;
     src.getBounds(&srcBounds);
     if (!this->applyCropRect(&srcBounds, ctm)) {
         return false;
     }
 
     dst->setConfig(src.config(), srcBounds.width(), srcBounds.height());
     dst->getBounds(&dstBounds);
     dst->allocPixels();
+    if (!dst->getPixels()) {
+        return false;
+    }
+
     int kernelSizeX, kernelSizeX3, lowOffsetX, highOffsetX;
     int kernelSizeY, kernelSizeY3, lowOffsetY, highOffsetY;
     getBox3Params(fSigma.width(), &kernelSizeX, &kernelSizeX3, &lowOffsetX, &highOffsetX);
     getBox3Params(fSigma.height(), &kernelSizeY, &kernelSizeY3, &lowOffsetY, &highOffsetY);
 
     if (kernelSizeX < 0 || kernelSizeY < 0) {
         return false;
     }
 
     if (kernelSizeX == 0 && kernelSizeY == 0) {
@@ skipping 62 matching lines @@
                                                              fSigma.width(),
                                                              fSigma.height()));
     offset->fX += rect.fLeft;
     offset->fY += rect.fTop;
     return SkImageFilterUtils::WrapTexture(tex, rect.width(), rect.height(), result);
 #else
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;
 #endif
 }