Add a mimeHandler extension API.

chrome/common/extensions/chrome_manifest_handlers.cc

Index: chrome/common/extensions/chrome_manifest_handlers.cc
diff --git a/chrome/common/extensions/chrome_manifest_handlers.cc b/chrome/common/extensions/chrome_manifest_handlers.cc
index 3399fc0d98f24e1c7fe37fd429a1cf43d4ad07aa..59eebc718ea691a2062aa51a2c709119434512df 100644
--- a/chrome/common/extensions/chrome_manifest_handlers.cc
+++ b/chrome/common/extensions/chrome_manifest_handlers.cc
@@ -25,7 +25,6 @@
 #include "chrome/common/extensions/manifest_handlers/content_scripts_handler.h"
 #include "chrome/common/extensions/manifest_handlers/copresence_manifest.h"
 #include "chrome/common/extensions/manifest_handlers/extension_action_handler.h"
-#include "chrome/common/extensions/manifest_handlers/mime_types_handler.h"
 #include "chrome/common/extensions/manifest_handlers/minimum_chrome_version_checker.h"
 #include "chrome/common/extensions/manifest_handlers/settings_overrides_handler.h"
 #include "chrome/common/extensions/manifest_handlers/theme_handler.h"
@@ -53,7 +52,6 @@ void RegisterChromeManifestHandlers() {
 #if defined(OS_CHROMEOS)
   (new InputComponentsHandler)->Register();
 #endif
-  (new MimeTypesHandlerParser)->Register();
   (new MinimumChromeVersionChecker)->Register();
   (new OmniboxHandler)->Register();
   (new OptionsPageManifestHandler)->Register();