add SkConvolutionProcs* to the none platformConvolutionProcs() signature

git-svn-id: http://skia.googlecode.com/svn/trunk@11120 2bbb7eff-a529-9590-31e7-b0007b416f81

src/opts/SkBitmapProcState_opts_none.cpp

@@ -23,4 +23,4 @@
 void SkBitmapProcState::platformProcs() {}
 
 // empty implementation just uses default supplied function pointers
-void SkBitmapProcState::platformConvolutionProcs() {}
+void SkBitmapProcState::platformConvolutionProcs(SkConvolutionProcs*) {}