Migrate HostZoomMap to live in StoragePartition.

content/browser/loader/resource_message_filter.cc

Index: content/browser/loader/resource_message_filter.cc
diff --git a/content/browser/loader/resource_message_filter.cc b/content/browser/loader/resource_message_filter.cc
index 9ffa29f5716352a8ae1068c6a521a0aa6dab7090..4a20d9ac1df7e00939f248d49c14821263403138 100644
--- a/content/browser/loader/resource_message_filter.cc
+++ b/content/browser/loader/resource_message_filter.cc
@@ -6,6 +6,7 @@
 
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
+#include "content/browser/host_zoom_level_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/common/resource_messages.h"
@@ -21,6 +22,7 @@ ResourceMessageFilter::ResourceMessageFilter(
     ChromeBlobStorageContext* blob_storage_context,
     storage::FileSystemContext* file_system_context,
     ServiceWorkerContextWrapper* service_worker_context,
+    HostZoomLevelContext* host_zoom_level_context,
     const GetContextsCallback& get_contexts_callback)
     : BrowserMessageFilter(ResourceMsgStart),
       child_id_(child_id),
@@ -29,6 +31,7 @@ ResourceMessageFilter::ResourceMessageFilter(
       blob_storage_context_(blob_storage_context),
       file_system_context_(file_system_context),
       service_worker_context_(service_worker_context),
+      host_zoom_level_context_(host_zoom_level_context),
       get_contexts_callback_(get_contexts_callback),
       weak_ptr_factory_(this) {
 }
@@ -53,6 +56,12 @@ void ResourceMessageFilter::GetContexts(
   return get_contexts_callback_.Run(request, resource_context, request_context);
 }
 
+const HostZoomMap* ResourceMessageFilter::GetHostZoomMap() const {
+  if (host_zoom_level_context_.get())
+    return host_zoom_level_context_->GetHostZoomMap();
+  return NULL;
+}
+
 base::WeakPtr<ResourceMessageFilter> ResourceMessageFilter::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }