notify delegate when devtools is loaded

brightray/browser/inspectable_web_contents_impl.cc

@@ -368,6 +368,9 @@ void InspectableWebContentsImpl::LoadCompleted() {
   // If the devtools can dock, "SetIsDocked" will be called by devtools itself.
   if (!can_dock_)
     SetIsDocked(DispatchCallback(), false);
+
+  if (view_->GetDelegate())
+    view_->GetDelegate()->DevToolsLoaded();
 }
 
 void InspectableWebContentsImpl::SetInspectedPageBounds(const gfx::Rect& rect) {

brightray/browser/inspectable_web_contents_view_delegate.h

@@ -12,6 +12,7 @@ class InspectableWebContentsViewDelegate {
   virtual void DevToolsFocused() {}
   virtual void DevToolsOpened() {}
   virtual void DevToolsClosed() {}
+  virtual void DevToolsLoaded() {}
 
   // Returns the icon of devtools window.
   virtual gfx::ImageSkia GetDevToolsWindowIcon();