Move IsStringASCII/UTF8 to base namespace.

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index ce81e56ad01e7de84823417ea0e48fe999543a19..bc0eab586c91e9f5cbe4bdeb287f1bf4e648839c 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -405,7 +405,7 @@ RendererWebKitPlatformSupportImpl::MimeRegistry::supportsMediaMIMEType(
     // Check whether the key system is supported with the mime_type and codecs.
 
     // Chromium only supports ASCII parameters.
-    if (!IsStringASCII(key_system))
+    if (!base::IsStringASCII(key_system))
       return IsNotSupported;
 
     std::string key_system_ascii =
@@ -467,8 +467,8 @@ RendererWebKitPlatformSupportImpl::MimeRegistry::supportsEncryptedMediaMIMEType(
     const WebString& mime_type,
     const WebString& codecs) {
   // Chromium only supports ASCII parameters.
-  if (!IsStringASCII(key_system) || !IsStringASCII(mime_type) ||
-      !IsStringASCII(codecs)) {
+  if (!base::IsStringASCII(key_system) || !base::IsStringASCII(mime_type) ||
+      !base::IsStringASCII(codecs)) {
     return false;
   }