[gin] Declare a wrappable's kWrapperInfo on the class deriving from Wrappable

Otherwise, we need to put INIT_WRAPPABLE() in namespace gin no matter
where the derived class is declared.

I pulled this out from https://codereview.chromium.org/111083005/

BUG=none
R=dcarney@chromium.org
TBR=aa@chromium.org

Review URL: https://codereview.chromium.org/113163007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240271 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 3 deletions

diff --git a/gin/wrappable_unittest.cc b/gin/wrappable_unittest.cc
index 7ffc0ca..3499eed 100644
--- a/gin/wrappable_unittest.cc
+++ b/gin/wrappable_unittest.cc
@@ -17,6 +17,8 @@ namespace gin {
 
 class MyObject : public Wrappable<MyObject> {
  public:
+  static WrapperInfo kWrapperInfo;
+
   static gin::Handle<MyObject> Create(v8::Isolate* isolate) {
     return CreateHandle(isolate, new MyObject());
   }
@@ -32,14 +34,18 @@ class MyObject : public Wrappable<MyObject> {
 };
 
 class MyObject2 : public Wrappable<MyObject2> {
+ public:
+  static WrapperInfo kWrapperInfo;
 };
 
 class MyObjectBlink : public Wrappable<MyObjectBlink> {
+ public:
+  static WrapperInfo kWrapperInfo;
 };
 
-INIT_WRAPPABLE(gin::MyObject);
-INIT_WRAPPABLE(gin::MyObject2);
-INIT_WRAPPABLE(gin::MyObjectBlink);
+WrapperInfo MyObject::kWrapperInfo = { kEmbedderNativeGin };
+WrapperInfo MyObject2::kWrapperInfo = { kEmbedderNativeGin };
+WrapperInfo MyObjectBlink::kWrapperInfo = { kEmbedderNativeGin };
 
 void RegisterTemplates(v8::Isolate* isolate) {
   PerIsolateData* data = PerIsolateData::From(isolate);