[DOMStorage] Remove unused DOMStorageContext from RenderMessageFilter.

RenderMessageFilter used to be responsible for cloning session storage
namespaces, but that is no longer the case, so remove these leftover
bits of code.

Bug: none
Change-Id: I382be562164851a8b00601661635e76495bbcbb2
Reviewed-on: https://chromium-review.googlesource.com/1099997Reviewed-by: Ken Buchanan <kenrb@chromium.org>
Commit-Queue: Marijn Kruisselbrink <mek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567404}

content/browser/renderer_host/render_message_filter.cc

@@ -29,8 +29,6 @@
 #include "content/browser/cache_storage/cache_storage_cache_handle.h"
 #include "content/browser/cache_storage/cache_storage_context_impl.h"
 #include "content/browser/cache_storage/cache_storage_manager.h"
-#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
-#include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
@@ -98,7 +96,6 @@ RenderMessageFilter::RenderMessageFilter(
     net::URLRequestContextGetter* request_context,
     RenderWidgetHelper* render_widget_helper,
     MediaInternals* media_internals,
-    DOMStorageContextWrapper* dom_storage_context,
     CacheStorageContextImpl* cache_storage_context)
     : BrowserMessageFilter(kRenderFilteredMessageClasses,
                            arraysize(kRenderFilteredMessageClasses)),
@@ -107,7 +104,6 @@ RenderMessageFilter::RenderMessageFilter(
       request_context_(request_context),
       resource_context_(browser_context->GetResourceContext()),
       render_widget_helper_(render_widget_helper),
-      dom_storage_context_(dom_storage_context),
       render_process_id_(render_process_id),
       media_internals_(media_internals),
       cache_storage_context_(cache_storage_context),

content/browser/renderer_host/render_message_filter.h

@@ -54,7 +54,6 @@ namespace content {
 class BrowserContext;
 class CacheStorageContextImpl;
 class CacheStorageCacheHandle;
-class DOMStorageContextWrapper;
 class MediaInternals;
 class RenderWidgetHelper;
 class ResourceContext;
@@ -73,7 +72,6 @@ class CONTENT_EXPORT RenderMessageFilter
                       net::URLRequestContextGetter* request_context,
                       RenderWidgetHelper* render_widget_helper,
                       MediaInternals* media_internals,
-                      DOMStorageContextWrapper* dom_storage_context,
                       CacheStorageContextImpl* cache_storage_context);
 
   // BrowserMessageFilter methods:
@@ -148,8 +146,6 @@ class CONTENT_EXPORT RenderMessageFilter
 
   scoped_refptr<RenderWidgetHelper> render_widget_helper_;
 
-  scoped_refptr<DOMStorageContextWrapper> dom_storage_context_;
-
   int render_process_id_;
 
   MediaInternals* media_internals_;

content/browser/renderer_host/render_process_host_impl.cc

@@ -1784,7 +1784,6 @@ void RenderProcessHostImpl::CreateMessageFilters() {
       base::MakeRefCounted<RenderMessageFilter>(
           GetID(), GetBrowserContext(), request_context.get(),
           widget_helper_.get(), media_internals,
-          storage_partition_impl_->GetDOMStorageContext(),
           storage_partition_impl_->GetCacheStorageContext());
   AddFilter(render_message_filter.get());