Move StartsWith[ASCII] to base namespace.

content/browser/tracing/tracing_ui.cc

Index: content/browser/tracing/tracing_ui.cc
diff --git a/content/browser/tracing/tracing_ui.cc b/content/browser/tracing/tracing_ui.cc
index c8a417e9bed4803900850e2f7a785a44d7b5a47f..8328330f4457d36cab08c42983437b4f6b1ed11e 100644
--- a/content/browser/tracing/tracing_ui.cc
+++ b/content/browser/tracing/tracing_ui.cc
@@ -204,7 +204,7 @@ bool OnBeginJSONRequest(const std::string& path,
   }
 
   const char* beginRecordingPath = "json/begin_recording?";
-  if (StartsWithASCII(path, beginRecordingPath, true)) {
+  if (base::StartsWithASCII(path, beginRecordingPath, true)) {
     std::string data = path.substr(strlen(beginRecordingPath));
     return BeginRecording(data, callback);
   }
@@ -248,7 +248,7 @@ bool OnBeginJSONRequest(const std::string& path,
 
 bool OnTracingRequest(const std::string& path,
                       const WebUIDataSource::GotDataCallback& callback) {
-  if (StartsWithASCII(path, "json/", true)) {
+  if (base::StartsWithASCII(path, "json/", true)) {
     if (!OnBeginJSONRequest(path, callback)) {
       std::string error("##ERROR##");
       callback.Run(base::RefCountedString::TakeString(&error));