Update bench pictures to time image decode & upload costs

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
===================================================================
--- include/gpu/GrContext.h	(revision 12709)
+++ include/gpu/GrContext.h	(working copy)
@@ -954,6 +954,13 @@
      */
     GrPath* createPath(const SkPath& skPath, const SkStrokeRec& stroke);
 
+    /**
+     * Purge all the unlocked textures from the texture cache
+     */
+    void purgeAllUnlocked();
+
+    friend class SkTools_PictureRenderer; // Allow access to purgeAllUnlocked for timings

[bsalomon, 2013/12/18 14:51:36]

If we move the impl to the test-only cpp then maybe we don't need the
friendship.

[robertphillips, 2013/12/18 15:59:13]

Done.

+
     typedef SkRefCnt INHERITED;
 };