base: Remove the string logging from CHECK().

chrome/browser/autofill/form_structure_browsertest.cc

Index: chrome/browser/autofill/form_structure_browsertest.cc
diff --git a/chrome/browser/autofill/form_structure_browsertest.cc b/chrome/browser/autofill/form_structure_browsertest.cc
index 4a77401161403f5e33acc874517d54383d39a80b..e73743414ed359cd1c9bf491c882b93bffb78dcd 100644
--- a/chrome/browser/autofill/form_structure_browsertest.cc
+++ b/chrome/browser/autofill/form_structure_browsertest.cc
@@ -38,7 +38,8 @@ const base::FilePath::CharType kTestName[] = FILE_PATH_LITERAL("heuristics");
 // Convert the |html| snippet to a data URI.
 GURL HTMLToDataURI(const std::string& html) {
   // GURL requires data URLs to be UTF-8 and will fail below if it's not.
-  CHECK(base::IsStringUTF8(html)) << "Input file is not UTF-8.";
+  // Input file is not UTF-8.

[vabr (Chromium), 2016/12/09 08:29:12]

This comment does not make sense. Thanks to the IsStringUTF8 function name, the
CHECK is self-documenting, please drop the comment.

+  CHECK(base::IsStringUTF8(html));
   return GURL(std::string("data:text/html;charset=utf-8,") + html);
 }