Add PPB_VarDictionary_Dev support - part 1.

ppapi/shared_impl/var.cc

Index: ppapi/shared_impl/var.cc
diff --git a/ppapi/shared_impl/var.cc b/ppapi/shared_impl/var.cc
index 2e63dbe1822cf6b5de29517367a737b8bf19f446..8870e3e7a7fe3607110779d8bfde24146fde5bad 100644
--- a/ppapi/shared_impl/var.cc
+++ b/ppapi/shared_impl/var.cc
@@ -56,6 +56,12 @@ std::string Var::PPVarToLogString(PP_Var var) {
     }
     case PP_VARTYPE_OBJECT:
       return "[Object]";
+    case PP_VARTYPE_ARRAY:
+      return "[Array]";
+    case PP_VARTYPE_DICTIONARY:
+      return "[Dictionary]";
+    case PP_VARTYPE_ARRAY_BUFFER:
+      return "[Array buffer]";
     default:
       return "[Invalid var]";
   }
@@ -77,6 +83,10 @@ ProxyObjectVar* Var::AsProxyObjectVar() {
   return NULL;
 }
 
+DictionaryVar* Var::AsDictionaryVar() {
+  return NULL;
+}
+
 PP_Var Var::GetPPVar() {
   int32 id = GetOrCreateVarID();
   if (!id)