Add PPB_VarArray_Dev support - part 1.

ppapi/shared_impl/var_value_conversions.cc

Index: ppapi/shared_impl/var_value_conversions.cc
diff --git a/ppapi/shared_impl/var_value_conversions.cc b/ppapi/shared_impl/var_value_conversions.cc
index 6457c7ec42526d42b09c268ba4d5bdc596b995ac..1a18a5ed67b44131332cbbf1d87b728a25629b60 100644
--- a/ppapi/shared_impl/var_value_conversions.cc
+++ b/ppapi/shared_impl/var_value_conversions.cc
@@ -14,6 +14,7 @@
 #include "base/values.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_stdint.h"
+#include "ppapi/shared_impl/array_var.h"
 #include "ppapi/shared_impl/dictionary_var.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/scoped_pp_var.h"
@@ -58,10 +59,24 @@ base::Value* CreateValueFromVarImpl(const PP_Var& var,
         return NULL;
       }
 
+      ArrayVar* array_var = ArrayVar::FromPPVar(var);
+      if (!array_var)
+        return NULL;
+
       scoped_ptr<base::ListValue> list_value(new base::ListValue());
       parent_ids->push_back(var.value.as_id);
 
-      // TODO(yzshen): Implement it once array var is supported.
+      for (ArrayVar::ElementVector::const_iterator iter =
+               array_var->elements().begin();
+           iter != array_var->elements().end(); ++iter) {
+        base::Value* value = CreateValueFromVarImpl(iter->get(), parent_ids);
+        if (!value) {
+          parent_ids->pop_back();
+          return NULL;
+        }
+
+        list_value->Append(value);
+      }
 
       parent_ids->pop_back();
       return list_value.release();
@@ -185,8 +200,22 @@ PP_Var CreateVarFromValue(const base::Value& value) {
       return dict_var->GetPPVar();
     }
     case base::Value::TYPE_LIST: {
-      // TODO(yzshen): Add support once array var is supported.
-      return PP_MakeUndefined();
+      const base::ListValue& list_value =
+          static_cast<const base::ListValue&>(value);
+
+      scoped_refptr<ArrayVar> array_var(new ArrayVar());
+      array_var->elements().reserve(list_value.GetSize());
+      for (base::ListValue::const_iterator iter = list_value.begin();
+           iter != list_value.end(); ++iter) {
+        ScopedPPVar child_var(ScopedPPVar::PassRef(),
+                              CreateVarFromValue(**iter));
+        if (child_var.get().type == PP_VARTYPE_UNDEFINED)
+          return PP_MakeUndefined();
+
+        array_var->elements().push_back(child_var);
+      }
+
+      return array_var->GetPPVar();
     }
   }
   NOTREACHED();