Add a way to monitor cache hits and misses for deferred decoding.

Adds a new flag to bench_pictures in order to do this. Also fix
a warning.

Review URL: https://codereview.chromium.org/12393046

git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@7965 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools.gyp b/tools.gyp
index 074efd1..7e5d79e 100644
--- a/tools.gyp
+++ b/tools.gyp
@@ -113,6 +113,7 @@
       ],
       'include_dirs': [
         '../bench',
+        '../src/lazy/',
       ],
       'dependencies': [
         'skia_base_libs.gyp:skia_base_libs',