Refactoring: Unify WebMemoryAllocatorDump and WebMemoryAllocatorDumpImpl

third_party/WebKit/public/platform/WebMemoryAllocatorDump.h

Index: third_party/WebKit/public/platform/WebMemoryAllocatorDump.h
diff --git a/third_party/WebKit/public/platform/WebMemoryAllocatorDump.h b/third_party/WebKit/public/platform/WebMemoryAllocatorDump.h
index 6d1fefe8aaf79bbc26267a56619a4d5ce5e103de..15a8d7e413122438be4a14e24d9107e740811992 100644
--- a/third_party/WebKit/public/platform/WebMemoryAllocatorDump.h
+++ b/third_party/WebKit/public/platform/WebMemoryAllocatorDump.h
@@ -8,14 +8,33 @@
 #include "WebCommon.h"
 #include "WebString.h"
 
+// TODO(hajimehoshi): WTF_MAKE_NONCOPYABLE works only in Blink side so far.

[tkent, 2016/02/29 02:34:04]

Blink public classes don't have WTF_MAKE_NONCOPYABLE because of this issue.
You may remove WTF_MAKE_NONCOPYABLE, or you may land this as is.

+// This macro should be replaced with DISALLOW_COPY_AND_ASSIGN in the near
+// future.
+#if INSIDE_BLINK
+#include "wtf/Noncopyable.h"
+#endif
+
+#include <stdint.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 BLINK_PLATFORM_EXPORT WebMemoryAllocatorDump {
+#if INSIDE_BLINK
+    WTF_MAKE_NONCOPYABLE(WebMemoryAllocatorDump);
+#endif
 public:
-    virtual ~WebMemoryAllocatorDump();
+    explicit WebMemoryAllocatorDump(base::trace_event::MemoryAllocatorDump*);
+    ~WebMemoryAllocatorDump();
 
     // Adds a scalar attribute to the dump.
     // Arguments:
@@ -25,9 +44,9 @@ public:
     //       about the semantics of the attribute.
     //       Currently supported values are "bytes" and "objects".
     //   value: the value of the attribute.
-    virtual void addScalar(const char* name, const char* units, uint64_t value) {}
-    virtual void addScalarF(const char* name, const char* units, double value) {}
-    virtual void addString(const char* name, const char* units, const WebString& value) {}
+    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 WebString& 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
@@ -35,11 +54,11 @@ public:
     // 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.
-    virtual WebMemoryAllocatorDumpGuid guid() const
-    {
-        BLINK_ASSERT_NOT_REACHED();
-        return 0;
-    }
+    WebMemoryAllocatorDumpGuid guid() const;
+
+private:
+    base::trace_event::MemoryAllocatorDump* m_memoryAllocatorDump; // Not owned.
+    blink::WebMemoryAllocatorDumpGuid m_guid;
 };
 
 } // namespace blink