use SkPath for GrPath, removing GrPathIter entirely

http://codereview.appspot.com/4515071/



git-svn-id: http://skia.googlecode.com/svn/trunk@1335 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrClip.cpp b/gpu/src/GrClip.cpp
index 2d1680c..c2613bb 100644
--- a/gpu/src/GrClip.cpp
+++ b/gpu/src/GrClip.cpp
@@ -132,7 +132,7 @@
                     }
                     break;
                 case kPath_ClipType:
-                    e.fPath.resetFromIter(iter->getPathIter());
+                    e.fPath = *iter->getPath();
                     if (tx || ty) {
                         e.fPath.offset(tx, ty);
                     }