Fix VAOs and client side arrays

gpu/command_buffer/service/context_state.h

Index: gpu/command_buffer/service/context_state.h
diff --git a/gpu/command_buffer/service/context_state.h b/gpu/command_buffer/service/context_state.h
index a9fc5d0c434378626618effc59e983a97af7b9b7..d2f428bf5e2d7663cf5b5b3da2fe4007154b54ea 100644
--- a/gpu/command_buffer/service/context_state.h
+++ b/gpu/command_buffer/service/context_state.h
@@ -77,6 +77,15 @@ struct GPU_EXPORT TextureUnit {
   }
 };
 
+struct Vec4 {
+  Vec4() {
+    v[0] = 0.0f;
+    v[1] = 0.0f;
+    v[2] = 0.0f;
+    v[3] = 1.0f;
+  }
+  float v[4];
+};
 
 struct GPU_EXPORT ContextState {
   ContextState();
@@ -117,6 +126,9 @@ struct GPU_EXPORT ContextState {
   // Which textures are bound to texture units through glActiveTexture.
   std::vector<TextureUnit> texture_units;
 
+  // The values for each attrib.
+  std::vector<Vec4> attrib_values;
+
   // Class that manages vertex attribs.
   VertexAttribManager::Ref vertex_attrib_manager;