Add histograms to track the size of the profile data.

BUG=16705
TEST=FileUtilTest.FileAndDirectorySize


Review URL: http://codereview.chromium.org/2778006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49606 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: a04876b90cb1e55881844ff22a74e06bf4641071
diff --git a/base/file_util_unittest.cc b/base/file_util_unittest.cc
index 219b63d..39e5398 100644
--- a/base/file_util_unittest.cc
+++ b/base/file_util_unittest.cc
@@ -463,6 +463,12 @@
 
   int64 computed_size = file_util::ComputeDirectorySize(test_dir_);
   EXPECT_EQ(size_f1 + size_f2 + 3, computed_size);
+
+  computed_size = file_util::ComputeFilesSize(test_dir_, FPL("The file*"));
+  EXPECT_EQ(size_f1, computed_size);
+
+  computed_size = file_util::ComputeFilesSize(test_dir_, FPL("bla*"));
+  EXPECT_EQ(0, computed_size);
 }
 
 TEST_F(FileUtilTest, NormalizeFilePathBasic) {