Refactoring: Move some classes from content/child to platform

content/child/web_memory_dump_provider_adapter.h

-// 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_CHILD_WEB_MEMORY_DUMP_PROVIDER_ADAPTER_H_
-#define CONTENT_CHILD_WEB_MEMORY_DUMP_PROVIDER_ADAPTER_H_
-
-#include "base/macros.h"
-#include "base/trace_event/memory_dump_provider.h"
-
-namespace blink {
-class WebMemoryDumpProvider;
-}  // namespace blink
-
-namespace content {
-
-// Adapter class which makes it possible to register a WebMemoryDumpProvider (
-// from blink) to base::trace_event::MemoryDumpManager, which expects a
-// MemoryDumpProvider instead.
-// This is essentially proxying the OnMemoryDump from chromium base to blink.
-class WebMemoryDumpProviderAdapter
-    : public base::trace_event::MemoryDumpProvider {
- public:
-  explicit WebMemoryDumpProviderAdapter(blink::WebMemoryDumpProvider* wmdp);
-  ~WebMemoryDumpProviderAdapter() override;
-
-  // base::trace_event::MemoryDumpProvider implementation.
-  bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
-                    base::trace_event::ProcessMemoryDump* pmd) override;
-
-  void OnHeapProfilingEnabled(bool enabled) override;
-
-  bool is_registered() const { return is_registered_; }
-  void set_is_registered(bool is_registered) { is_registered_ = is_registered; }
-
- private:
-  // The underlying WebMemoryDumpProvider instance to which the OnMemoryDump()
-  // calls will be proxied to.
-  blink::WebMemoryDumpProvider* web_memory_dump_provider_;  // Not owned.
-
-  // True iff this has been registered with the MDM (and not unregistered yet).
-  bool is_registered_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebMemoryDumpProviderAdapter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEB_MEMORY_DUMP_PROVIDER_ADAPTER_H_