Windows build fixes from r3887.



git-svn-id: http://skia.googlecode.com/svn/trunk@3889 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGLShaders.cpp b/src/gpu/gl/GrGpuGLShaders.cpp
index 9b6600b..48ec623 100644
--- a/src/gpu/gl/GrGpuGLShaders.cpp
+++ b/src/gpu/gl/GrGpuGLShaders.cpp
@@ -302,7 +302,7 @@
             // TODO: is there a more elegant way to express this?
             if (stage.fFetchMode == StageDesc::kConvolution_FetchMode) {
                 int direction = random_int(&random, 2);
-                float kernel[stage.fKernelWidth];
+                float kernel[MAX_KERNEL_WIDTH];
                 for (int i = 0; i < stage.fKernelWidth; i++) {
                     kernel[i] = random.nextF();
                 }