[PPAPI] Documentation fixes.

ppapi/cpp/mouse_lock.h

 // Copyright (c) 2012 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.
 
 #ifndef PPAPI_CPP_MOUSE_LOCK_H_
 #define PPAPI_CPP_MOUSE_LOCK_H_
 
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/cpp/instance_handle.h"
 
 /// @file
 /// This file defines the API for locking the target of mouse events to a
 /// specific module instance.
 
 namespace pp {
 
 class CompletionCallback;
 class Instance;
 
 /// This class allows you to associate the <code>PPP_MouseLock</code> and
 /// <code>PPB_MouseLock</code> C-based interfaces with an object. It associates
 /// itself with the given instance, and registers as the global handler for
 /// handling the <code>PPP_MouseLock</code> interface that the browser calls.
 ///
 /// You would typically use this class by inheritance on your instance or by
 /// composition.
 ///
 /// <strong>Example (inheritance):</strong>
-/// <code>
+/// @code
 ///   class MyInstance : public pp::Instance, public pp::MouseLock {
 ///     class MyInstance() : pp::MouseLock(this) {
 ///     }
 ///     ...
 ///   };
-/// </code>
+/// @endcode
 ///
 /// <strong>Example (composition):</strong>
-/// <code>
+/// @code
 ///   class MyMouseLock : public pp::MouseLock {
 ///     ...
 ///   };
 ///
 ///   class MyInstance : public pp::Instance {
 ///     MyInstance() : mouse_lock_(this) {
 ///     }
 ///
 ///     MyMouseLock mouse_lock_;
 ///   };
-/// </code>
+/// @endcode
 class MouseLock {
  public:
   /// A constructor for creating a <code>MouseLock</code>.
   ///
   /// @param[in] instance The instance with which this resource will be
   /// associated.
   explicit MouseLock(Instance* instance);
 
   /// Destructor.
   virtual ~MouseLock();
@@ skipping 29 matching lines @@
   /// has lost the mouse lock.
   void UnlockMouse();
 
  private:
   InstanceHandle associated_instance_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_MOUSE_LOCK_H_