[Code health] Finish converting DevtoolsWindow creation callback to repeating

Looks like I missed these in r835679

Bug: 1152274
Change-Id: I9ab585c62c753b2945b88a77ad1c3938f6693dae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2626513Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843565}

chrome/browser/devtools/devtools_window.cc

@@ -88,7 +88,8 @@ typedef std::vector<DevToolsWindow*> DevToolsWindows;
 base::LazyInstance<DevToolsWindows>::Leaky g_devtools_window_instances =
     LAZY_INSTANCE_INITIALIZER;
 
-base::LazyInstance<std::vector<base::Callback<void(DevToolsWindow*)>>>::Leaky
+base::LazyInstance<
+    std::vector<base::RepeatingCallback<void(DevToolsWindow*)>>>::Leaky
     g_creation_callbacks = LAZY_INSTANCE_INITIALIZER;
 
 static const char kKeyUpEventName[] = "keyup";
@@ -1032,7 +1033,7 @@ DevToolsWindow::DevToolsWindow(FrontendType frontend_type,
   // so that it shows up in the task manager.
   task_manager::WebContentsTags::CreateForDevToolsContents(main_web_contents_);
 
-  std::vector<base::Callback<void(DevToolsWindow*)>> copy(
+  std::vector<base::RepeatingCallback<void(DevToolsWindow*)>> copy(
       g_creation_callbacks.Get());
   for (const auto& callback : copy)
     callback.Run(this);

chrome/browser/devtools/devtools_window_testing.h

@@ -81,7 +81,7 @@ class DevToolsWindowCreationObserver {
 
   void DevToolsWindowCreated(DevToolsWindow* devtools_window);
 
-  base::Callback<void(DevToolsWindow*)> creation_callback_;
+  base::RepeatingCallback<void(DevToolsWindow*)> creation_callback_;
   DevToolsWindows devtools_windows_;
   scoped_refptr<content::MessageLoopRunner> runner_;