replace DISALLOW_COPY_AND_ASSIGN macros in blink/../execution_context

Bug: 1010217
Change-Id: Ic247386d4ba64c14273d959180f2c29b47f4158b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2344325Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Hyunjune Kim <hyunjune.kim@samsung.com>
Cr-Commit-Position: refs/heads/master@{#796662}

third_party/blink/renderer/core/execution_context/execution_context.h

@@ -375,6 +375,8 @@ class CORE_EXPORT ExecutionContext : public Supplementable<ExecutionContext>,
 
  protected:
   explicit ExecutionContext(v8::Isolate* isolate, Agent*);
+  ExecutionContext(const ExecutionContext&) = delete;
+  ExecutionContext& operator=(const ExecutionContext&) = delete;
   ~ExecutionContext() override;
 
   // Resetting the Agent is only necessary for a special case related to the
@@ -443,8 +445,6 @@ class CORE_EXPORT ExecutionContext : public Supplementable<ExecutionContext>,
   // context as to the FeaturePolicyProposalWouldChangeBehaviour
   // histogram, in order not to overcount.
   mutable Vector<bool> feature_policy_behaviour_change_counted_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExecutionContext);
 };
 
 }  // namespace blink

third_party/blink/renderer/core/execution_context/security_context.h

@@ -74,6 +74,8 @@ class CORE_EXPORT SecurityContext {
 
  public:
   explicit SecurityContext(ExecutionContext*);
+  SecurityContext(const SecurityContext&) = delete;
+  SecurityContext& operator=(const SecurityContext&) = delete;
   virtual ~SecurityContext();
 
   void Trace(Visitor*) const;
@@ -184,7 +186,6 @@ class CORE_EXPORT SecurityContext {
   InsecureNavigationsSet insecure_navigations_to_upgrade_;
   bool require_safe_types_ = false;
   SecureContextMode secure_context_mode_ = SecureContextMode::kInsecureContext;
-  DISALLOW_COPY_AND_ASSIGN(SecurityContext);
 };
 
 }  // namespace blink