Remove abstract classes for memory dumper

third_party/WebKit/Source/platform/web_memory_allocator_dump.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 WebMemoryAllocatorDump_h
+#define WebMemoryAllocatorDump_h
+
+#include <stdint.h>
+
+#include "base/macros.h"
+#include "platform/PlatformExport.h"
+#include "wtf/text/WTFString.h"
+
+namespace base {
+namespace trace_event {
+class MemoryAllocatorDump;
+}  // namespace base
+}  // namespace trace_event
+
+namespace blink {
+
+typedef uint64_t WebMemoryAllocatorDumpGuid;
+
+// A container which holds all the attributes of a particular dump for a given
+// allocator.
+class PLATFORM_EXPORT WebMemoryAllocatorDump final {
+ public:
+  explicit WebMemoryAllocatorDump(
+      base::trace_event::MemoryAllocatorDump* memory_allocator_dump);
+  ~WebMemoryAllocatorDump();
+
+  // Adds a scalar attribute to the dump.
+  // Arguments:
+  //   name: name of the attribute. Typical names, emitted by most allocators
+  //       dump providers are: "size" and "objects_count".
+  //   units: the units for the attribute. Gives a hint to the trace-viewer UI
+  //       about the semantics of the attribute.
+  //       Currently supported values are "bytes" and "objects".
+  //   value: the value of the attribute.
+  void addScalar(const char* name, const char* units, uint64_t value);
+  void addScalarF(const char* name, const char* units, double value);
+  void addString(const char* name,
+                 const char* units,
+                 const String& value);
+
+  // |guid| is an optional global dump identifier, unique across all processes
+  // within the scope of a global dump. It is only required when using the
+  // graph APIs (see AddOwnershipEdge) to express retention / suballocation or
+  // cross process sharing. See crbug.com/492102 for design docs.
+  // Subsequent MemoryAllocatorDump(s) with the same |absolute_name| are
+  // expected to have the same guid.
+  blink::WebMemoryAllocatorDumpGuid guid() const;
+
+ private:
+  base::trace_event::MemoryAllocatorDump* memory_allocator_dump_;  // Not owned.
+  blink::WebMemoryAllocatorDumpGuid guid_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebMemoryAllocatorDump);
+};
+
+}  // namespace blink
+
+#endif  // WebMemoryAllocatorDump_h