Move the IsSupported* mime functions out of //net and into //components/mime_util

chrome/browser/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 
 # //build/config/android/rules.gni imports //tools/grit/grit_rule.gni, which
 # produces a conflict for the "grit" template so we have to only include one.
@@ skipping 89 matching lines @@
     "//components/google/core/browser",
     "//components/handoff",
     "//components/history/core/browser",
     "//components/history/core/common",
     "//components/infobars/core",
     "//components/invalidation",
     "//components/metrics:gpu",
     "//components/metrics:net",
     "//components/metrics:profiler",
     "//components/metrics/proto:proto",
+    "//components/mime_util",
     "//components/navigation_metrics",
     "//components/network_time",
     "//components/omnibox",
     "//components/os_crypt",
     "//components/packed_ct_ev_whitelist",
     "//components/password_manager/core/browser",
     "//components/password_manager/core/common",
     "//components/policy:policy_component",
     "//components/precache/core",
     "//components/query_parser",
@@ skipping 1009 matching lines @@
     ]
   }
 
   if (enable_wifi_bootstrapping) {
     sources += [
       "local_discovery/wifi/mock_wifi_manager.cc",
       "local_discovery/wifi/mock_wifi_manager.h",
     ]
   }
 }