Pepper: Fix comments for PPB and PPP InputEvent.

ppapi/cpp/instance.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_INSTANCE_H_
 #define PPAPI_CPP_INSTANCE_H_
 
 /// @file
 /// This file defines the C++ wrapper for an instance.
 
@@ skipping 156 matching lines @@
   /// @param[in] has_focus Indicates the new focused state of the instance.
   virtual void DidChangeFocus(bool has_focus);
 
   /// HandleInputEvent() handles input events from the browser. The default
   /// implementation does nothing and returns false.
   ///
   /// In order to receive input events, you must register for them by calling
   /// RequestInputEvents() or RequestFilteringInputEvents(). By
   /// default, no events are delivered.
   ///
-  /// If the event was handled, it will not be forwarded to the web page or
-  /// browser. If it was not handled, it will bubble according to the normal
-  /// rules. So it is important that an instance respond accurately with whether
-  /// event propagation should continue.
+  /// If the event was handled, it will not be forwarded to any default
+  /// handlers. If it was not handled, it may be dispatched to a default
+  /// handler. So it is important that an instance respond accurately with
+  /// whether event propagation should continue.
   ///
   /// Event propagation also controls focus. If you handle an event like a mouse
   /// event, typically the instance will be given focus. Returning false from
   /// a filtered event handler or not registering for an event type means that
   /// the click will be given to a lower part of the page and your instance will
   /// not receive focus. This allows an instance to be partially transparent,
   /// where clicks on the transparent areas will behave like clicks to the
   /// underlying page.
   ///
   /// In general, you should try to keep input event handling short. Especially
@@ skipping 378 matching lines @@
  private:
   PP_Instance pp_instance_;
 
   typedef std::map<std::string, void*> InterfaceNameToObjectMap;
   InterfaceNameToObjectMap interface_name_to_objects_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_INSTANCE_H_