Fixed bad bitmap size crashes

src/effects/SkMatrixConvolutionImageFilter.cpp

 /*
  * Copyright 2012 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 "SkMatrixConvolutionImageFilter.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
@@ skipping 261 matching lines @@
         src = unpremultiplyBitmap(src);
     }
 
     SkAutoLockPixels alp(src);
     if (!src.getPixels()) {
         return false;
     }
 
     result->setConfig(src.config(), bounds.width(), bounds.height());
     result->allocPixels();
+    if (!result->getPixels()) {
+        return false;
+    }
 
     SkIRect interior = SkIRect::MakeXYWH(bounds.left() + fTarget.fX,
                                          bounds.top() + fTarget.fY,
                                          bounds.width() - fKernelSize.fWidth + 1,
                                          bounds.height() - fKernelSize.fHeight + 1);
     SkIRect top = SkIRect::MakeLTRB(bounds.left(), bounds.top(), bounds.right(), interior.top());
     SkIRect bottom = SkIRect::MakeLTRB(bounds.left(), interior.bottom(),
                                        bounds.right(), bounds.bottom());
     SkIRect left = SkIRect::MakeLTRB(bounds.left(), interior.top(),
                                      interior.left(), interior.bottom());
@@ skipping 365 matching lines @@
                                                 fBias,
                                                 fTarget,
                                                 fTileMode,
                                                 fConvolveAlpha);
     return true;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #endif