Add never-attached in devtools WebView description

Bug: 1059071
Change-Id: I6020bb00f73b402fb9a2ea95c11ed656d4aa9b55
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2092122Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#748399}

android_webview/browser/aw_devtools_manager_delegate.cc

@@ -31,6 +31,7 @@ std::string AwDevToolsManagerDelegate::GetTargetDescription(
     return "";
   base::DictionaryValue description;
   description.SetBoolean("attached", bvr->attached_to_window());
+  description.SetBoolean("never_attached", !bvr->was_attached());
   description.SetBoolean("visible", bvr->IsVisible());
   gfx::Rect screen_rect = bvr->GetScreenRect();
   description.SetInteger("screenX", screen_rect.x());

android_webview/browser/gfx/browser_view_renderer.h

@@ -117,6 +117,7 @@ class BrowserViewRenderer : public content::SynchronousCompositorClient,
   bool IsVisible() const;
   gfx::Rect GetScreenRect() const;
   bool attached_to_window() const { return attached_to_window_; }
+  bool was_attached() const { return was_attached_; }
   gfx::Size size() const { return size_; }
 
   bool IsClientVisible() const;

chrome/browser/resources/inspect/inspect.js

@@ -573,6 +573,9 @@ function addWebViewDescription(row, webview) {
   } else {
     viewStatus.visibility = 'empty';
   }
+  if (webview.never_attached) {
+    viewStatus.visibility += ' never-attached';
+  }
   if (webview.attached) {
     viewStatus.position =
         'at (' + webview.screenX + ', ' + webview.screenY + ')';