Core - Remove IContextMenuParams.IsPepperMenu

This is a breaking change

Resolves #3460

Author: amaitland

CefSharp.Core.Runtime/Internals/CefContextMenuParamsWrapper.cpp

@@ -144,12 +144,5 @@ namespace CefSharp
 
             return _wrappedInfo->IsCustomMenu();
         }
-
-        bool CefContextMenuParamsWrapper::IsPepperMenu::get()
-        {
-            ThrowIfDisposed();
-
-            return _wrappedInfo->IsPepperMenu();
-        }
     }
 }

CefSharp.Core.Runtime/Internals/CefContextMenuParamsWrapper.h

@@ -57,7 +57,6 @@ namespace CefSharp
             virtual property bool IsSpellCheckEnabled { bool get(); }
             virtual property ContextMenuEditState EditStateFlags { ContextMenuEditState get(); }
             virtual property bool IsCustomMenu { bool get(); }
-            virtual property bool IsPepperMenu { bool get(); }
         };
     }
 }

CefSharp/IContextMenuParams.cs

@@ -121,11 +121,6 @@ public interface IContextMenuParams : IDisposable
         /// </summary>
         bool IsCustomMenu { get; }
 
-        /// <summary>
-        /// Returns true if the context menu was invoked from a pepper plugin.
-        /// </summary>
-        bool IsPepperMenu { get; }
-
         /// <summary>
         /// Gets a value indicating whether the object has been disposed of.
         /// </summary>