effects: Replaces uses of GrAssert with SkASSERT.

This is the first step on migrating from GrAssert to SkASSERT as requested by
Brian.

R=bsalomon@google.com, robertphillips@google.com, scroggo@google.com

Author: tfarina@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22418006

git-svn-id: http://skia.googlecode.com/svn/trunk@10706 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkMatrixConvolutionImageFilter.cpp b/src/effects/SkMatrixConvolutionImageFilter.cpp
index b3ce7ec..bedd6f8 100644
--- a/src/effects/SkMatrixConvolutionImageFilter.cpp
+++ b/src/effects/SkMatrixConvolutionImageFilter.cpp
@@ -470,8 +470,8 @@
     const GrMatrixConvolutionEffect& conv = drawEffect.castEffect<GrMatrixConvolutionEffect>();
     GrTexture& texture = *conv.texture(0);
     // the code we generated was for a specific kernel size
-    GrAssert(conv.kernelSize() == fKernelSize);
-    GrAssert(conv.tileMode() == fTileMode);
+    SkASSERT(conv.kernelSize() == fKernelSize);
+    SkASSERT(conv.tileMode() == fTileMode);
     float imageIncrement[2];
     float ySign = texture.origin() == kTopLeft_GrSurfaceOrigin ? 1.0f : -1.0f;
     imageIncrement[0] = 1.0f / texture.width();