GrAtlas cleanup: Split out GrPlot and GrAtlas

src/gpu/GrRectanizer.cpp

Index: src/gpu/GrRectanizer.cpp
diff --git a/src/gpu/GrRectanizer.cpp b/src/gpu/GrRectanizer.cpp
index 7b49530366796cabfe6fafe0c96493b6987adaf5..418bf196bca73baf09c8e2f21b2b7bddd8f6450c 100644
--- a/src/gpu/GrRectanizer.cpp
+++ b/src/gpu/GrRectanizer.cpp
@@ -24,6 +24,12 @@ public:
     virtual ~GrRectanizerPow2() {
     }
 
+    virtual void reset() {
+        fNextStripY = 0;
+        fAreaSoFar = 0;
+        sk_bzero(fRows, sizeof(fRows));        
+    }
+
     virtual bool addRect(int w, int h, GrIPoint16* loc);
 
     virtual float percentFull() const {