fix warnings (signed/unsigned, initialization order, parens)



git-svn-id: http://skia.googlecode.com/svn/trunk@1724 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pipe/SkGPipeRead.cpp b/src/pipe/SkGPipeRead.cpp
index 07d4ee2..5fdbfc3 100644
--- a/src/pipe/SkGPipeRead.cpp
+++ b/src/pipe/SkGPipeRead.cpp
@@ -85,7 +85,7 @@
         return fFlatArray[index - 1];
     }
 
-    void defFlattenable(PaintFlats pf, unsigned index) {
+    void defFlattenable(PaintFlats pf, int index) {
         SkASSERT(index == fFlatArray.count() + 1);
         SkFlattenable* obj = fReader->readFlattenable();
         *fFlatArray.append() = obj;