SK_SUPPORT_LEGACY_GRTYPES to hide duplicate types from SkTypes.h

BUG=skia:
R=bsalomon@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/216503004

git-svn-id: http://skia.googlecode.com/svn/trunk@13982 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index d2a3ada..e8ce27f 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -488,8 +488,8 @@
     void drawVertices(const GrPaint& paint,
                       GrPrimitiveType primitiveType,
                       int vertexCount,
-                      const GrPoint positions[],
-                      const GrPoint texs[],
+                      const SkPoint positions[],
+                      const SkPoint texs[],
                       const GrColor colors[],
                       const uint16_t indices[],
                       int indexCount);