Move ZoomObserver, ZoomController and ZoomEventManager to components/.

components/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/features.gni")
 import("//build/config/ui.gni")
 
 # Collection of all components. You wouldn't link to this, but this is rather
 # to reference the files so they can be compiled by the build system.
 group("all_components") {
@@ skipping 75 matching lines @@
     "//components/signin/core/browser",
     "//components/startup_metric_utils",
     "//components/strings",
     "//components/sync_driver",
     "//components/tracing",
     "//components/translate/content/browser",
     "//components/translate/content/common",
     "//components/translate/content/renderer",
     "//components/translate/core/browser",
     "//components/translate/core/common",
+    "//components/ui/zoom:ui_zoom",
     "//components/url_fixer",
     "//components/url_matcher",
     "//components/user_manager",
     "//components/user_prefs",
     "//components/variations",
     "//components/visitedlink/browser",
     "//components/visitedlink/common",
     "//components/visitedlink/renderer",
     "//components/web_cache/browser",
     "//components/web_cache/common",
@@ skipping 148 matching lines @@
   #'breakpad/app/crash_keys_win_unittest.cc',
 
   # Precache tests need these defines.
   #configs += [ "//components/precache/core:precache_config" ]
 
   if (toolkit_views) {
     # TODO(GYP) enable this as above.
     #deps += [ "//components/constrained_window:unit_tests" ]
   }
 }