Move stuff from protected to private in GrGpuGL

Review URL: http://codereview.appspot.com/6295044/



git-svn-id: http://skia.googlecode.com/svn/trunk@4161 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL.cpp b/src/gpu/gl/GrGpuGL.cpp
index a1cd1e0..bf526c9 100644
--- a/src/gpu/gl/GrGpuGL.cpp
+++ b/src/gpu/gl/GrGpuGL.cpp
@@ -481,7 +481,7 @@
     GL_CALL(LineWidth(1));
 
     // invalid
-    fActiveTextureUnitIdx = -1;
+    fHWActiveTextureUnitIdx = -1;
 
     fHWBlendState.invalidate();
 
@@ -2395,16 +2395,16 @@
 
 void GrGpuGL::setTextureUnit(int unit) {
     GrAssert(unit >= 0 && unit < GrDrawState::kNumStages);
-    if (fActiveTextureUnitIdx != unit) {
+    if (fHWActiveTextureUnitIdx != unit) {
         GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + unit));
-        fActiveTextureUnitIdx = unit;
+        fHWActiveTextureUnitIdx = unit;
     }
 }
 
 void GrGpuGL::setSpareTextureUnit() {
-    if (fActiveTextureUnitIdx != (GR_GL_TEXTURE0 + SPARE_TEX_UNIT)) {
+    if (fHWActiveTextureUnitIdx != (GR_GL_TEXTURE0 + SPARE_TEX_UNIT)) {
         GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + SPARE_TEX_UNIT));
-        fActiveTextureUnitIdx = SPARE_TEX_UNIT;
+        fHWActiveTextureUnitIdx = SPARE_TEX_UNIT;
     }
 }