Fixes for surfaces bindings exposed by wm_flow app

mojo/services/view_manager/display_manager.cc

Index: mojo/services/view_manager/display_manager.cc
diff --git a/mojo/services/view_manager/display_manager.cc b/mojo/services/view_manager/display_manager.cc
index d42e2823a8d37cd05f6d408cb24120c4be3d36a1..c00da2a60dfe0e0060e7e3bd3fd6c9078934cee8 100644
--- a/mojo/services/view_manager/display_manager.cc
+++ b/mojo/services/view_manager/display_manager.cc
@@ -29,7 +29,7 @@ gfx::Rect ConvertRectToRoot(const ServerView* view, const gfx::Rect& bounds) {
   return gfx::Rect(origin, bounds.size());
 }
 
-void DrawViewTree(Pass* pass, const ServerView* view) {
+void DrawViewTree(Pass* pass, const ServerView* view, gfx::Vector2d offset) {
   if (!view->visible())
     return;
 
@@ -38,7 +38,7 @@ void DrawViewTree(Pass* pass, const ServerView* view) {
   SurfaceQuadStatePtr surface_quad_state = SurfaceQuadState::New();
   surface_quad_state->surface = SurfaceId::From(node_id);
 
-  const gfx::Rect& node_bounds = view->bounds();
+  gfx::Rect node_bounds = view->bounds() + offset;
   gfx::Transform node_transform;
   node_transform.Translate(node_bounds.x(), node_bounds.y());
 
@@ -58,11 +58,12 @@ void DrawViewTree(Pass* pass, const ServerView* view) {
   pass->quads.push_back(surface_quad.Pass());
   pass->shared_quad_states.push_back(sqs.Pass());
 
+  offset += view->bounds().OffsetFromOrigin();
   std::vector<const ServerView*> children(view->GetChildren());
   for (std::vector<const ServerView*>::reverse_iterator it = children.rbegin();
        it != children.rend();
        ++it) {
-    DrawViewTree(pass, *it);
+    DrawViewTree(pass, *it, offset);
   }
 }
 
@@ -126,7 +127,7 @@ void DisplayManager::Draw() {
   PassPtr pass = CreateDefaultPass(1, gfx::Rect(bounds_));
   pass->damage_rect = Rect::From(dirty_rect_);
 
-  DrawViewTree(pass.get(), connection_manager_->root());
+  DrawViewTree(pass.get(), connection_manager_->root(), gfx::Vector2d());
 
   FramePtr frame = Frame::New();
   frame->passes.push_back(pass.Pass());