Add canvas ops 3

Added the following
--DrawPoint
--DrawPath
--DrawRegion
--DrawDoubleRoundRect
--DrawLine
--DrawVertices

Test: Added tests to CanvasOpTests
Change-Id: I5844c61bc8d2dacf74e504f7bac7946398174ed2
diff --git a/libs/hwui/tests/common/CallCountingCanvas.h b/libs/hwui/tests/common/CallCountingCanvas.h
index a965571..594afd0 100644
--- a/libs/hwui/tests/common/CallCountingCanvas.h
+++ b/libs/hwui/tests/common/CallCountingCanvas.h
@@ -80,7 +80,7 @@
 
     int drawPathCount = 0;
     void onDrawPath(const SkPath& path, const SkPaint& paint) override {
-        drawPaintCount++;
+        drawPathCount++;
     }
 
     int drawRegionCount = 0;
@@ -159,6 +159,12 @@
         drawPictureCount++;
     }
 
+    int drawVerticesCount = 0;
+    void onDrawVerticesObject (const SkVertices *vertices, SkBlendMode mode,
+                        const SkPaint &paint) override {
+        drawVerticesCount++;
+    }
+
 private:
     int END_MARKER;
 };