Add support for WebKit2GTK+ in wxWebView

build/bakefiles/config.bkl

@@ -417,6 +417,7 @@ to run the tests, include CppUnit library here.
         <option name="DYLIB_RPATH_POSTLINK"/>
         <option name="SAMPLES_RPATH_FLAG"/>
         <option name="SAMPLES_CXXFLAGS"/>
+        <option name="USE_WEBVIEW_WEBKIT2"/>
 
         <!-- see configure.in; it's required by some samples on Mac OS X -->
         <option name="HEADER_PAD_OPTION"/>

build/bakefiles/files.bkl

@@ -3095,6 +3095,7 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
 <set var="WEBVIEW_SRC_PLATFORM">
     <if cond="TOOLKIT=='MSW'">src/msw/webview_ie.cpp</if>
     <if cond="TOOLKIT=='GTK'">src/gtk/webview_webkit.cpp</if>
+    <if cond="TOOLKIT=='GTK'">src/gtk/webview_webkit2.cpp</if>
     <if cond="PLATFORM_MACOSX=='1'">src/osx/webview_webkit.mm</if>
 </set>
 <set var="WEBVIEW_CMN_SRC" hints="files">
@@ -3132,6 +3133,10 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     $(WEBVIEW_CMN_HDR)
 </set>
 
+<set var="WEBVIEW_WEBKIT2_EXTENSION_SRC" hints="files">
+    src/gtk/webview_webkit2_extension.cpp
+</set>
+
 <!-- ====================================================================== -->
 <!--                                wxXRC                                   -->
 <!-- ====================================================================== -->

build/bakefiles/multilib.bkl

@@ -180,6 +180,7 @@
          cond="SHARED=='1' and USE_GUI=='1' and USE_WEBVIEW=='1' and MONOLITHIC=='0'">
         <define>WXUSINGDLL</define>
         <define>WXMAKINGDLL_WEBVIEW</define>
+        <define>WX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"</define>
         <sources>$(WEBVIEW_SRC)</sources>
         <library>coredll</library>
         <library>basedll</library>

build/bakefiles/plugins.bkl

@@ -11,5 +11,10 @@
         <ldlibs>$(EXTRALIBS_SDL)</ldlibs>
     </wx-base-plugin>
 
+    <wx-base-plugin id="webkit2_ext" cond="USE_WEBVIEW_WEBKIT2=='1'">
+        <sources>$(WEBVIEW_WEBKIT2_EXTENSION_SRC)</sources>
+        <ldlibs>$(EXTRALIBS_WEBVIEW)</ldlibs>
+        <install-to>$(PLUGINS_INST_DIR)/web-extensions</install-to>
+    </wx-base-plugin>
 
 </makefile>