Print detailed info in check_gn_headers.py

build/check_gn_headers_unittest.py

Index: build/check_gn_headers_unittest.py
diff --git a/build/check_gn_headers_unittest.py b/build/check_gn_headers_unittest.py
index 20b41f4b957eb9a83f1850d79d7c0495637585aa..20c3b138979036d2d96b6601bd3ef48c099e710f 100755
--- a/build/check_gn_headers_unittest.py
+++ b/build/check_gn_headers_unittest.py
@@ -5,7 +5,6 @@
 
 import logging
 import json
-import os
 import unittest
 import check_gn_headers
 
@@ -65,13 +64,13 @@ a/b/c
 class CheckGnHeadersTest(unittest.TestCase):
   def testNinja(self):
     headers = check_gn_headers.ParseNinjaDepsOutput(
-        ninja_input.split('\n'), 'out/Release')
-    expected = set([
-        'dir/path/b.h',
-        'c.hh',
-        'dir3/path/b.h',
-        'c3.hh',
-    ])
+        ninja_input.split('\n'), 'out/Release', False)
+    expected = {
+        'dir/path/b.h': ['obj/a.o'],
+        'c.hh': ['obj/a.o'],
+        'dir3/path/b.h': ['obj/c.o'],
+        'c3.hh': ['obj/c.o'],
+    }
     self.assertEquals(headers, expected)
 
   def testGn(self):