Remove static initiazled gClampNearest in gpu backend

Review URL: http://codereview.appspot.com/5487044/


git-svn-id: http://skia.googlecode.com/svn/trunk@2851 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 761a46b..0205dd6 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -58,7 +58,7 @@
 
 GrContext::TextureCacheEntry sk_gr_create_bitmap_texture(GrContext* ctx,
                                                 GrContext::TextureKey key,
-                                                const GrSamplerState& sampler,
+                                                const GrSamplerState* sampler,
                                                 const SkBitmap& origBitmap) {
     SkAutoLockPixels alp(origBitmap);
     GrContext::TextureCacheEntry entry;