Remove usage of HostZoomMap from c/b/loader via ReadyToCommitNavigation

content/browser/loader/resource_message_filter.h

Index: content/browser/loader/resource_message_filter.h
diff --git a/content/browser/loader/resource_message_filter.h b/content/browser/loader/resource_message_filter.h
index 4037826d7b1ddf8686a94d6e88f0e0bc8191dfa2..2d641aa72db89f13533011d0e9e7fe79504b6f32 100644
--- a/content/browser/loader/resource_message_filter.h
+++ b/content/browser/loader/resource_message_filter.h
@@ -11,7 +11,6 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/sequenced_task_runner_helpers.h"
-#include "content/browser/host_zoom_level_context.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/browser_thread.h"
@@ -54,7 +53,6 @@ class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter {
                         ChromeBlobStorageContext* blob_storage_context,
                         storage::FileSystemContext* file_system_context,
                         ServiceWorkerContextWrapper* service_worker_context,
-                        HostZoomLevelContext* host_zoom_level_context,
                         const GetContextsCallback& get_contexts_callback);
 
   // BrowserMessageFilter implementation.
@@ -85,10 +83,6 @@ class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter {
     return service_worker_context_.get();
   }
 
-  // Returns a raw pointer to the HostZoomLevelContext's associated HostZoomMap,
-  // or NULL if no context is present.
-  const HostZoomMap* GetHostZoomMap() const;
-
   int child_id() const { return child_id_; }
   int process_type() const { return process_type_; }
 
@@ -111,7 +105,6 @@ class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter {
   scoped_refptr<ChromeBlobStorageContext> blob_storage_context_;
   scoped_refptr<storage::FileSystemContext> file_system_context_;
   scoped_refptr<ServiceWorkerContextWrapper> service_worker_context_;
-  scoped_refptr<HostZoomLevelContext> host_zoom_level_context_;
 
   GetContextsCallback get_contexts_callback_;