Print the file being deserialized before deserializing.

That way it is easier to tell which file failed.

R=edisonn@google.com

Review URL: https://codereview.chromium.org/18219002

git-svn-id: http://skia.googlecode.com/svn/trunk@9811 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/render_pictures_main.cpp b/tools/render_pictures_main.cpp
index f06cfeb..4a7e708 100644
--- a/tools/render_pictures_main.cpp
+++ b/tools/render_pictures_main.cpp
@@ -149,6 +149,8 @@
         return false;
     }
 
+    SkDebugf("deserializing... %s\n", inputPath.c_str());
+
     bool success = false;
     SkPicture* picture;
     if (FLAGS_deferImageDecoding) {