Change PPB_CharSet_Dev.GetDefaultCharSet to return the default encoding of the web contents instead…

content/renderer/pepper/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper/pepper_plugin_delegate_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_delegate_impl.cc b/content/renderer/pepper/pepper_plugin_delegate_impl.cc
index 427af74c99d081004e09de9cc007e99cf83ac605..a11b942915cf3a13cd6ec784e7e81dc18c6c2b7d 100644
--- a/content/renderer/pepper/pepper_plugin_delegate_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_delegate_impl.cc
@@ -1363,9 +1363,7 @@ gfx::Size PepperPluginDelegateImpl::GetScreenSize() {
 }
 
 std::string PepperPluginDelegateImpl::GetDefaultEncoding() {
-  // TODO(brettw) bug 56615: Somehow get the preference for the default
-  // encoding here rather than using the global default for the UI language.
-  return GetContentClient()->renderer()->GetDefaultEncoding();
+  return render_view_->webkit_preferences().default_encoding;
 }
 
 void PepperPluginDelegateImpl::ZoomLimitsChanged(double minimum_factor,