Fix signed/unsigned warning in GrInOrderDrawBuffer.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@1182 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrInOrderDrawBuffer.cpp b/gpu/src/GrInOrderDrawBuffer.cpp
index 93acc12..7b769fe 100644
--- a/gpu/src/GrInOrderDrawBuffer.cpp
+++ b/gpu/src/GrInOrderDrawBuffer.cpp
@@ -333,7 +333,7 @@
     GrAssert(NULL != target);
     GrAssert(target != this); // not considered and why?
 
-    uint32_t numDraws = fDraws.count();
+    int numDraws = fDraws.count();
     if (!numDraws) {
         return;
     }
@@ -351,7 +351,7 @@
     uint32_t currClip  = ~0;
     uint32_t currClear = 0;
 
-    for (uint32_t i = 0; i < numDraws; ++i) {
+    for (int i = 0; i < numDraws; ++i) {
         while (currClear < fClears.count() && 
                i == fClears[currClear].fBeforeDrawIdx) {
             target->clear(fClears[currClear].fColor);