Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/search/iframe_source_unittest.cc

 // Copyright 2013 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 "chrome/browser/search/iframe_source.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 20 matching lines @@
 const int kInvalidRendererPID = 42;
 
 class TestIframeSource : public IframeSource {
  public:
   using IframeSource::GetMimeType;
   using IframeSource::ShouldServiceRequest;
   using IframeSource::SendResource;
   using IframeSource::SendJSWithOrigin;
 
  protected:
-  virtual std::string GetSource() const override {
-    return "test";
-  }
+  std::string GetSource() const override { return "test"; }
 
-  virtual bool ServesPath(const std::string& path) const override {
+  bool ServesPath(const std::string& path) const override {
     return path == "/valid.html" || path == "/valid.js";
   }
 
-  virtual void StartDataRequest(
+  void StartDataRequest(
       const std::string& path,
       int render_process_id,
       int render_frame_id,
-      const content::URLDataSource::GotDataCallback& callback) override {
-  }
+      const content::URLDataSource::GotDataCallback& callback) override {}
 
   // RenderFrameHost is hard to mock in concert with everything else, so stub
   // this method out for testing.
-  virtual bool GetOrigin(
-      int process_id,
-      int render_frame_id,
-      std::string* origin) const override {
+  bool GetOrigin(int process_id,
+                 int render_frame_id,
+                 std::string* origin) const override {
     if (process_id == kInstantRendererPID) {
       *origin = kInstantOrigin;
       return true;
     }
     if (process_id == kNonInstantRendererPID) {
       *origin = kNonInstantOrigin;
       return true;
     }
     return false;
   }
@@ skipping 124 matching lines @@
 }
 
 TEST_F(IframeSourceTest, SendJSWithOrigin) {
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS, kInstantRendererPID, 0);
   EXPECT_FALSE(response_string().empty());
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS, kNonInstantRendererPID, 0);
   EXPECT_FALSE(response_string().empty());
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS, kInvalidRendererPID, 0);
   EXPECT_TRUE(response_string().empty());
 }