Extracted media mime type checks from net/base/ into media/base/

content/child/simple_webmimeregistry_impl.cc

Index: content/child/simple_webmimeregistry_impl.cc
diff --git a/content/child/simple_webmimeregistry_impl.cc b/content/child/simple_webmimeregistry_impl.cc
index fbf264632d7f5303246425d7de66e0b0a73cf081..b902d4aeb6fc793e5ecf9ec51bf206ca8b486902 100644
--- a/content/child/simple_webmimeregistry_impl.cc
+++ b/content/child/simple_webmimeregistry_impl.cc
@@ -8,6 +8,7 @@
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/common/mime_util.h"
 #include "net/base/mime_util.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 
@@ -24,7 +25,7 @@ std::string SimpleWebMimeRegistryImpl::ToASCIIOrEmpty(const WebString& string) {
 
 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMIMEType(
     const WebString& mime_type) {
-  return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
+  return content::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
 }