hide SkBitmap::setConfig

src/effects/SkMatrixConvolutionImageFilter.cpp

Index: src/effects/SkMatrixConvolutionImageFilter.cpp
diff --git a/src/effects/SkMatrixConvolutionImageFilter.cpp b/src/effects/SkMatrixConvolutionImageFilter.cpp
index 89e113b8cea9867fb70c99dfcbbe9db532b4718f..ca2cfcaab7890a5a74b79fa75a1fe1041898b076 100644
--- a/src/effects/SkMatrixConvolutionImageFilter.cpp
+++ b/src/effects/SkMatrixConvolutionImageFilter.cpp
@@ -282,9 +282,7 @@ bool SkMatrixConvolutionImageFilter::onFilterImage(Proxy* proxy,
         return false;
     }
 
-    result->setConfig(src.config(), bounds.width(), bounds.height());
-    result->allocPixels();
-    if (!result->getPixels()) {
+    if (!result->allocPixels(src.info().makeWH(bounds.width(), bounds.height()))) {
         return false;
     }