Migrate HostZoomMap to live in StoragePartition.

content/content_browser.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../device/battery/battery.gyp:device_battery',
     '../device/battery/battery.gyp:device_battery_mojo_bindings',
@@ skipping 221 matching lines @@
       'public/browser/web_ui.h',
       'public/browser/web_ui_controller.cc',
       'public/browser/web_ui_controller.h',
       'public/browser/web_ui_controller_factory.h',
       'public/browser/web_ui_data_source.h',
       'public/browser/url_data_source.cc',
       'public/browser/url_data_source.h',
       'public/browser/web_ui_message_handler.h',
       'public/browser/worker_service.h',
       'public/browser/worker_service_observer.h',
+      'public/browser/zoom_level_delegate.h',
       'public/browser/zygote_host_linux.h',
     ],
     'private_browser_sources': [
       'browser/accessibility/accessibility_mode_helper.cc',
       'browser/accessibility/accessibility_mode_helper.h',
       'browser/accessibility/accessibility_tree_formatter.cc',
       'browser/accessibility/accessibility_tree_formatter.h',
       'browser/accessibility/accessibility_tree_formatter_android.cc',
       'browser/accessibility/accessibility_tree_formatter_mac.mm',
       'browser/accessibility/accessibility_tree_formatter_utils_win.cc',
@@ skipping 484 matching lines @@
       'browser/gpu/shader_disk_cache.h',
       'browser/histogram_controller.cc',
       'browser/histogram_controller.h',
       'browser/histogram_internals_request_job.cc',
       'browser/histogram_internals_request_job.h',
       'browser/histogram_message_filter.cc',
       'browser/histogram_message_filter.h',
       'browser/histogram_subscriber.h',
       'browser/histogram_synchronizer.cc',
       'browser/histogram_synchronizer.h',
+      'browser/host_zoom_level_context.cc',
+      'browser/host_zoom_level_context.h',
       'browser/host_zoom_map_impl.cc',
       'browser/host_zoom_map_impl.h',
       'browser/indexed_db/indexed_db.h',
       'browser/indexed_db/indexed_db_active_blob_registry.cc',
       'browser/indexed_db/indexed_db_active_blob_registry.h',
       'browser/indexed_db/indexed_db_backing_store.cc',
       'browser/indexed_db/indexed_db_backing_store.h',
       'browser/indexed_db/indexed_db_blob_info.cc',
       'browser/indexed_db/indexed_db_blob_info.h',
       'browser/indexed_db/indexed_db_callbacks.cc',
@@ skipping 1168 matching lines @@
       'sources': [
         'browser/media/cdm/browser_cdm_manager.cc',
         'browser/media/cdm/browser_cdm_manager.h',
         # This works on Android because enable_browser_cdms==1 on Android.
         'browser/media/media_web_contents_observer.cc',
         'browser/media/media_web_contents_observer.h',
       ],
     }],
   ],
 }