Move WebMIMERegistry impl from //content to blink:platform/network/mime

content/test/test_blink_web_unit_test_support.cc

Index: content/test/test_blink_web_unit_test_support.cc
diff --git a/content/test/test_blink_web_unit_test_support.cc b/content/test/test_blink_web_unit_test_support.cc
index 52c9db2e589722a361680463be387af6a28f0dfb..3212891cacb6dbe34a38ab5876b19ec3570899c1 100644
--- a/content/test/test_blink_web_unit_test_support.cc
+++ b/content/test/test_blink_web_unit_test_support.cc
@@ -190,10 +190,6 @@ blink::WebIDBFactory* TestBlinkWebUnitTestSupport::idbFactory() {
   return NULL;
 }
 
-blink::WebMimeRegistry* TestBlinkWebUnitTestSupport::mimeRegistry() {
-  return &mime_registry_;
-}
-
 blink::WebURLLoader* TestBlinkWebUnitTestSupport::createURLLoader() {
   // This loader should be used only for process-local resources such as
   // data URLs.