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, 2 insertions, 2 deletions

diff --git a/net/http/http_util_unittest.cc b/net/http/http_util_unittest.cc
index 54acf68..8c08df2 100644
--- a/net/http/http_util_unittest.cc
+++ b/net/http/http_util_unittest.cc
@@ -50,7 +50,7 @@ TEST(HttpUtilTest, IsSafeHeader) {
   for (size_t i = 0; i < arraysize(unsafe_headers); ++i) {
     EXPECT_FALSE(HttpUtil::IsSafeHeader(unsafe_headers[i]))
       << unsafe_headers[i];
-    EXPECT_FALSE(HttpUtil::IsSafeHeader(StringToUpperASCII(std::string(
+    EXPECT_FALSE(HttpUtil::IsSafeHeader(base::StringToUpperASCII(std::string(
         unsafe_headers[i])))) << unsafe_headers[i];
   }
   static const char* safe_headers[] = {
@@ -95,7 +95,7 @@ TEST(HttpUtilTest, IsSafeHeader) {
   };
   for (size_t i = 0; i < arraysize(safe_headers); ++i) {
     EXPECT_TRUE(HttpUtil::IsSafeHeader(safe_headers[i])) << safe_headers[i];
-    EXPECT_TRUE(HttpUtil::IsSafeHeader(StringToUpperASCII(std::string(
+    EXPECT_TRUE(HttpUtil::IsSafeHeader(base::StringToUpperASCII(std::string(
         safe_headers[i])))) << safe_headers[i];
   }
 }