Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

Convert LowerCaseEqualsASCII to take StringPiece. In the current patch this is
generally a NOP but will allow me to delete the other 4 variants in a followup
(wanted to do that separately since that will require more review, since
callsites will be changed in nontrivial ways).

In some cases, LowerCaseEqualsASCII is called with a WebString, which no
longer is implicitly converted. I added base::string16(...) around such
calls to force the right conversion. It happened in these files:
  window_container_type.cc
  savable_resources.cc
  render_view_impl.cc
  blink_ax_tree_source.cc
  password_form_conversion_utils.cc
  translate_helper.cc
  chrome_render_view_observer.cc
  dom_serializer_browsertest.cc

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/448143008

Cr-Commit-Position: refs/heads/master@{#289312}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289312 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 1 deletions

diff --git a/components/translate/core/language_detection/language_detection_util.cc b/components/translate/core/language_detection/language_detection_util.cc
index 35a21b9..29f4898 100644
--- a/components/translate/core/language_detection/language_detection_util.cc
+++ b/components/translate/core/language_detection/language_detection_util.cc
@@ -292,7 +292,7 @@ void CorrectLanguageCodeTypo(std::string* code) {
   size_t dash_index = code->find('-');
   if (dash_index != std::string::npos) {
     *code = base::StringToLowerASCII(code->substr(0, dash_index)) +
-        StringToUpperASCII(code->substr(dash_index));
+        base::StringToUpperASCII(code->substr(dash_index));
   } else {
     *code = base::StringToLowerASCII(*code);
   }