remove fConvolutionProcs from State, and just use it locally

BUG=
R=humper@google.com

Review URL: https://codereview.chromium.org/23796005

git-svn-id: http://skia.googlecode.com/svn/trunk@11118 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/opts/opts_check_SSE2.cpp b/src/opts/opts_check_SSE2.cpp
index 8d43390..8f0bdac 100644
--- a/src/opts/opts_check_SSE2.cpp
+++ b/src/opts/opts_check_SSE2.cpp
@@ -107,13 +107,13 @@
 
 SK_CONF_DECLARE( bool, c_hqfilter_sse, "bitmap.filter.highQualitySSE", false, "Use SSE optimized version of high quality image filters");
 
-void SkBitmapProcState::platformConvolutionProcs() {
+void SkBitmapProcState::platformConvolutionProcs(SkConvolutionProcs* procs) {
     if (cachedHasSSE2()) {
-        fConvolutionProcs->fExtraHorizontalReads = 3;
-        fConvolutionProcs->fConvolveVertically = &convolveVertically_SSE2;
-        fConvolutionProcs->fConvolve4RowsHorizontally = &convolve4RowsHorizontally_SSE2;
-        fConvolutionProcs->fConvolveHorizontally = &convolveHorizontally_SSE2;
-        fConvolutionProcs->fApplySIMDPadding = &applySIMDPadding_SSE2;
+        procs->fExtraHorizontalReads = 3;
+        procs->fConvolveVertically = &convolveVertically_SSE2;
+        procs->fConvolve4RowsHorizontally = &convolve4RowsHorizontally_SSE2;
+        procs->fConvolveHorizontally = &convolveHorizontally_SSE2;
+        procs->fApplySIMDPadding = &applySIMDPadding_SSE2;
     }
 }