Rename vars and functions from 'glslcaps'->'shadercaps'

Change-Id: I34d226d866dd4ba8e5f33f95cb8cbf01292f9314
Reviewed-on: https://skia-review.googlesource.com/5312
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/effects/GrTextureDomain.h b/src/gpu/effects/GrTextureDomain.h
index 7e7ec74..644d14c 100644
--- a/src/gpu/effects/GrTextureDomain.h
+++ b/src/gpu/effects/GrTextureDomain.h
@@ -115,7 +115,7 @@
          */
         void sampleTexture(GrGLSLShaderBuilder* builder,
                            GrGLSLUniformHandler* uniformHandler,
-                           const GrShaderCaps* glslCaps,
+                           const GrShaderCaps* shaderCaps,
                            const GrTextureDomain& textureDomain,
                            const char* outColor,
                            const SkString& inCoords,