Replace WTF_MAKE_NONCOPYABLE with DISALLOW_COPY_AND_ASSIGN in core/leak_detector/*

This change is for files in the path
//third_party/WebKit/Source/core/leak_detector/.

Added the include for base/macros.h where needed and moved the macro to the
end of the class as per the code guidelines enforced by lint.

This CL introduces no logic changes.

Bug: 565932
Change-Id: If017db1b5666219af6f95ac38aaeced49f657f69
Reviewed-on: https://chromium-review.googlesource.com/813434Reviewed-by: Sasha Morrissey <sashab@chromium.org>
Commit-Queue: Eve Martin-Jones <evem@chromium.org>
Cr-Commit-Position: refs/heads/master@{#522357}

third_party/WebKit/Source/core/leak_detector/WebLeakDetector.cpp

@@ -30,6 +30,7 @@
 
 #include "public/web/WebLeakDetector.h"
 
+#include "base/macros.h"
 #include "core/frame/WebLocalFrameImpl.h"
 #include "core/leak_detector/BlinkLeakDetector.h"
 #include "core/leak_detector/BlinkLeakDetectorClient.h"
@@ -42,7 +43,6 @@ namespace {
 
 class WebLeakDetectorImpl final : public WebLeakDetector,
                                   public BlinkLeakDetectorClient {
-  WTF_MAKE_NONCOPYABLE(WebLeakDetectorImpl);
 
  public:
   explicit WebLeakDetectorImpl(WebLeakDetectorClient* client)
@@ -61,6 +61,7 @@ class WebLeakDetectorImpl final : public WebLeakDetector,
  private:
   WebLeakDetectorClient* client_;
   std::unique_ptr<BlinkLeakDetector> detector_;
+  DISALLOW_COPY_AND_ASSIGN(WebLeakDetectorImpl);
 };
 
 void WebLeakDetectorImpl::PrepareForLeakDetection(WebFrame* frame) {