Revert of Architecture for cross-process memory notification suppressing

content/browser/memory/memory_message_filter.h

Index: content/browser/memory/memory_message_filter.h
diff --git a/content/browser/memory/memory_message_filter.h b/content/browser/memory/memory_message_filter.h
deleted file mode 100644
index 122a7aa9cec2035bb92978ddaea51c6a2d3c38ba..0000000000000000000000000000000000000000
--- a/content/browser/memory/memory_message_filter.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2015 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.
-
-#ifndef CONTENT_BROWSER_MEMORY_MEMORY_MESSAGE_FILTER_H_
-#define CONTENT_BROWSER_MEMORY_MEMORY_MESSAGE_FILTER_H_
-
-#include "content/common/content_export.h"
-#include "content/public/browser/browser_message_filter.h"
-
-namespace content {
-
-// This class sends memory messages from the browser process.
-// See also: child_memory_message_filter.h
-class CONTENT_EXPORT MemoryMessageFilter : public BrowserMessageFilter {
- public:
-  MemoryMessageFilter();
-
-  // BrowserMessageFilter implementation.
-  void OnFilterAdded(IPC::Sender* sender) override;
-  void OnChannelClosing() override;
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  void SendSetPressureNotificationsSuppressed(bool suppressed);
-
- protected:
-  ~MemoryMessageFilter() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(MemoryMessageFilter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_MEMORY_MEMORY_MESSAGE_FILTER_H_