Revert r3523 and r2522

Review URL: https://codereview.appspot.com/5939051

git-svn-id: http://skia.googlecode.com/svn/trunk@3524 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrAAConvexPathRenderer.cpp b/src/gpu/GrAAConvexPathRenderer.cpp
index 7f8d027..7638067 100644
--- a/src/gpu/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/GrAAConvexPathRenderer.cpp
@@ -53,9 +53,10 @@
 
 void center_of_mass(const SegmentArray& segments, SkPoint* c) {
     GrScalar area = 0;
-    SkPoint center = {};
+    SkPoint center;
+    center.set(0, 0);
     int count = segments.count();
-    SkPoint p0 = {};
+    SkPoint p0;
     if (count > 2) {
         // We translate the polygon so that the first point is at the origin.
         // This avoids some precision issues with small area polygons far away