Replace ToLower calls to the new format

Replaces
  base::StringToLowerASCII(string)
with
  base::ToLowerASCII(string)
This form is 1:1 search and replace.

A bunch of places did something like this:
  std::string foo(something_else);
  base::StringToLowerASCII(&foo);
which became:
  foo = base::ToLowerASCII(something_else);

A couple places really wanted in-place changing and they became:
  foo = base::ToLowerASCII(foo);

There was pretty trivial cleanup in chrome_main_delegate.cc chrome/test/chromedriver/server/http_handler.cc (fix indenting).

There was more cleanup in:
chrome/installer/util/language_selector.cc and components/plugins/renderer/mobile_youtube_plugin.cc

In components/history/core/browser/url_utils.cc I removed the call since it was calling ToLower on the host name out of a GURL, which is already guaranteed to be lower-case.

NOPRESUBMIT=true
(due to touching code with wstrings)

Review URL: https://codereview.chromium.org/1279123004

Cr-Commit-Position: refs/heads/master@{#342659}

3 files changed, 9 insertions, 10 deletions

diff --git a/chrome/test/chromedriver/capabilities.cc b/chrome/test/chromedriver/capabilities.cc
index bc5bbbb..e4ba863 100644
--- a/chrome/test/chromedriver/capabilities.cc
+++ b/chrome/test/chromedriver/capabilities.cc
@@ -211,7 +211,7 @@ Status ParseProxy(const base::Value& option, Capabilities* capabilities) {
   std::string proxy_type;
   if (!proxy_dict->GetString("proxyType", &proxy_type))
     return Status(kUnknownError, "'proxyType' must be a string");
-  proxy_type = base::StringToLowerASCII(proxy_type);
+  proxy_type = base::ToLowerASCII(proxy_type);
   if (proxy_type == "direct") {
     capabilities->switches.SetSwitch("no-proxy-server");
   } else if (proxy_type == "system") {
diff --git a/chrome/test/chromedriver/chrome_launcher.cc b/chrome/test/chromedriver/chrome_launcher.cc
index cb77dc1..90ddede 100644
--- a/chrome/test/chromedriver/chrome_launcher.cc
+++ b/chrome/test/chromedriver/chrome_launcher.cc
@@ -573,8 +573,7 @@ void ConvertHexadecimalToIDAlphabet(std::string* id) {
 std::string GenerateExtensionId(const std::string& input) {
   uint8 hash[16];
   crypto::SHA256HashString(input, hash, sizeof(hash));
-  std::string output =
-      base::StringToLowerASCII(base::HexEncode(hash, sizeof(hash)));
+  std::string output = base::ToLowerASCII(base::HexEncode(hash, sizeof(hash)));
   ConvertHexadecimalToIDAlphabet(&output);
   return output;
 }
diff --git a/chrome/test/chromedriver/server/http_handler.cc b/chrome/test/chromedriver/server/http_handler.cc
index 63c0a95..c3941b0 100644
--- a/chrome/test/chromedriver/server/http_handler.cc
+++ b/chrome/test/chromedriver/server/http_handler.cc
@@ -722,14 +722,14 @@ namespace internal {
 const char kNewSessionPathPattern[] = "session";
 
 bool MatchesMethod(HttpMethod command_method, const std::string& method) {
-  std::string lower_method = base::StringToLowerASCII(method);
+  std::string lower_method = base::ToLowerASCII(method);
   switch (command_method) {
-  case kGet:
-    return lower_method == "get";
-  case kPost:
-    return lower_method == "post" || lower_method == "put";
-  case kDelete:
-    return lower_method == "delete";
+    case kGet:
+      return lower_method == "get";
+    case kPost:
+      return lower_method == "post" || lower_method == "put";
+    case kDelete:
+      return lower_method == "delete";
   }
   return false;
 }