Standardize usage of virtual/override/final in cc/

cc/output/gl_renderer.cc

 // Copyright 2010 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.
 
 #include "cc/output/gl_renderer.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 #include <string>
@@ skipping 38 matching lines @@
 
 namespace cc {
 namespace {
 
 class FallbackFence : public ResourceProvider::Fence {
  public:
   explicit FallbackFence(gpu::gles2::GLES2Interface* gl)
       : gl_(gl), has_passed_(true) {}
 
   // Overridden from ResourceProvider::Fence:
-  virtual void Set() override { has_passed_ = false; }
-  virtual bool HasPassed() override {
+  void Set() override { has_passed_ = false; }
+  bool HasPassed() override {
     if (!has_passed_) {
       has_passed_ = true;
       Synchronize();
     }
     return true;
   }
 
  private:
-  virtual ~FallbackFence() {}
+  ~FallbackFence() override {}
 
   void Synchronize() {
     TRACE_EVENT0("cc", "FallbackFence::Synchronize");
     gl_->Finish();
   }
 
   gpu::gles2::GLES2Interface* gl_;
   bool has_passed_;
 
   DISALLOW_COPY_AND_ASSIGN(FallbackFence);
@@ skipping 164 matching lines @@
     is_pending_ = false;
   }
 
  private:
   class Fence : public ResourceProvider::Fence {
    public:
     explicit Fence(base::WeakPtr<GLRenderer::SyncQuery> query)
         : query_(query) {}
 
     // Overridden from ResourceProvider::Fence:
-    virtual void Set() override {
+    void Set() override {
       DCHECK(query_);
       query_->Set();
     }
-    virtual bool HasPassed() override {
-      return !query_ || !query_->IsPending();
-    }
+    bool HasPassed() override { return !query_ || !query_->IsPending(); }
 
    private:
-    virtual ~Fence() {}
+    ~Fence() override {}
 
     base::WeakPtr<SyncQuery> query_;
 
     DISALLOW_COPY_AND_ASSIGN(Fence);
   };
 
   gpu::gles2::GLES2Interface* gl_;
   unsigned query_id_;
   bool is_pending_;
   base::WeakPtrFactory<SyncQuery> weak_ptr_factory_;
@@ skipping 3001 matching lines @@
     context_support_->ScheduleOverlayPlane(
         overlay.plane_z_order,
         overlay.transform,
         pending_overlay_resources_.back()->texture_id(),
         overlay.display_rect,
         overlay.uv_rect);
   }
 }
 
 }  // namespace cc