Remove devtools window runner abstraction (see #3685)

Remove code abstractions that are no longer required after deletion of
the Alloy bootstrap. This is a functional no-op.

libcef/browser/devtools/devtools_window_runner.cc

@@ -0,0 +1,73 @@
+// Copyright 2024 The Chromium Embedded Framework Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cef/libcef/browser/devtools/devtools_window_runner.h"
+
+#include "cef/libcef/browser/chrome/chrome_browser_host_impl.h"
+#include "cef/libcef/browser/request_context_impl.h"
+#include "cef/libcef/browser/thread_util.h"
+#include "chrome/browser/devtools/devtools_window.h"
+
+void CefDevToolsWindowRunner::ShowDevTools(
+    CefBrowserHostBase* opener,
+    std::unique_ptr<CefShowDevToolsParams> params) {
+  CEF_REQUIRE_UIT();
+  auto* web_contents = opener->GetWebContents();
+  if (!web_contents) {
+    return;
+  }
+
+  auto* profile = CefRequestContextImpl::GetProfile(opener->request_context());
+  if (!DevToolsWindow::AllowDevToolsFor(profile, web_contents)) {
+    LOG(WARNING) << "DevTools is not allowed for this browser";
+    return;
+  }
+
+  auto inspect_element_at = params->inspect_element_at_;
+
+  if (!browser_host_) {
+    // Configure parameters for ChromeBrowserDelegate::CreateDevToolsBrowser
+    // which will be called indirectly to create the DevTools window.
+    DCHECK(!pending_params_);
+    pending_params_ = std::move(params);
+  }
+
+  // Focus the existing DevTools window or create a new one.
+  if (!inspect_element_at.IsEmpty()) {
+    DevToolsWindow::InspectElement(web_contents->GetPrimaryMainFrame(),
+                                   inspect_element_at.x, inspect_element_at.y);
+  } else {
+    DevToolsWindow::OpenDevToolsWindow(web_contents, profile,
+                                       DevToolsOpenedByAction::kUnknown);
+  }
+
+  // The DevTools browser host should now exist.
+  DCHECK(browser_host_);
+}
+
+void CefDevToolsWindowRunner::CloseDevTools() {
+  CEF_REQUIRE_UIT();
+  if (browser_host_) {
+    browser_host_->TryCloseBrowser();
+    browser_host_ = nullptr;
+  }
+}
+
+bool CefDevToolsWindowRunner::HasDevTools() {
+  CEF_REQUIRE_UIT();
+  return !!browser_host_;
+}
+
+std::unique_ptr<CefShowDevToolsParams>
+CefDevToolsWindowRunner::TakePendingParams() {
+  CEF_REQUIRE_UIT();
+  return std::move(pending_params_);
+}
+
+void CefDevToolsWindowRunner::SetDevToolsBrowserHost(
+    base::WeakPtr<ChromeBrowserHostImpl> browser_host) {
+  CEF_REQUIRE_UIT();
+  DCHECK(!browser_host_);
+  browser_host_ = browser_host;
+}