Support the Clear-Site-Data header on resource requests

content/browser/loader/DEPS

 # The core loading code in this directory is being transitioned into a separate
 # Mojo networking service. See http://crbug.com/598073. The first stage is to
 # decouple the code that will be moved from the rest of content. These rules
 # help ensure that we don't add more includes, and can progressively reduce the
 # code's dependencies.
 #
 # For each file, the first section shows includes that are allowed (i.e. because
 # they are for files that will be moving as well). The second section, separated
 # by a comment, lists files that we will have to decouple.
 specific_include_rules = {
@@ skipping 141 matching lines @@
     "+content/public/browser/resource_dispatcher_host.h",
     "+content/public/browser/resource_dispatcher_host_delegate.h",
     "+content/public/browser/resource_request_info.h",
     "+content/public/browser/resource_throttle.h",
 
     # TODO: These all have to be removed.
     "+content/browser/appcache/appcache_interceptor.h",
     "+content/browser/appcache/chrome_appcache_service.h",
     "+content/browser/bad_message.h",
     "+content/browser/blob_storage/chrome_blob_storage_context.h",
+    "+content/browser/browsing_data/clear_site_data_throttle.h",
     "+content/browser/child_process_security_policy_impl.h",
     "+content/browser/download/save_types.h",
     "+content/browser/frame_host/frame_tree.h",
     "+content/browser/frame_host/navigation_handle_impl.h",
     "+content/browser/frame_host/navigation_request_info.h",
     "+content/browser/frame_host/navigator.h",
     "+content/browser/loader/cross_site_resource_handler.h",
     "+content/browser/loader/detachable_resource_handler.h",
     "+content/browser/loader/intercepting_resource_handler.h",
     "+content/browser/loader/mime_sniffing_resource_handler.h",
@@ skipping 166 matching lines @@
     "+content/public/browser/resource_dispatcher_host_delegate.h",
     "+content/public/common/content_paths.h",
     "+content/public/common/process_type.h",
     "+content/public/test/test_browser_context.h",
     "+content/public/test/test_browser_thread_bundle.h",
 
     #TODO: To be removed when PlzNavigate lands.
     "+content/browser/loader/navigation_resource_throttle.h"
   ],
 }