[Android WebView] Provide more information about WebView for web debugging

android_webview/browser/browser_view_renderer_impl.cc

Index: android_webview/browser/browser_view_renderer_impl.cc
diff --git a/android_webview/browser/browser_view_renderer_impl.cc b/android_webview/browser/browser_view_renderer_impl.cc
index e846aa77a21c434320d03ab8c6ae43b408d268e9..95051a78b1e79b8240c732d8c89057469eecb00c 100644
--- a/android_webview/browser/browser_view_renderer_impl.cc
+++ b/android_webview/browser/browser_view_renderer_impl.cc
@@ -136,6 +136,7 @@ BrowserViewRendererImpl::BrowserViewRendererImpl(
       view_clip_layer_(cc::Layer::create()),
       transform_layer_(cc::Layer::create()),
       scissor_clip_layer_(cc::Layer::create()),
+      view_attached_(false),
       view_visible_(false),
       compositor_visible_(false),
       is_composite_pending_(false),
@@ -409,15 +410,29 @@ void BrowserViewRendererImpl::OnSizeChanged(int width, int height) {
 }
 
 void BrowserViewRendererImpl::OnAttachedToWindow(int width, int height) {
+  view_attached_ = true;
   view_size_ = gfx::Size(width, height);
   view_clip_layer_->setBounds(view_size_);
 }
 
 void BrowserViewRendererImpl::OnDetachedFromWindow() {
+  view_attached_ = false;
   view_visible_ = false;
   SetCompositorVisibility(false);
 }
 
+bool BrowserViewRendererImpl::IsAttachedToWindow() {
+  return view_attached_;
+}
+
+bool BrowserViewRendererImpl::IsViewVisible() {
+  return view_visible_;
+}
+
+gfx::Rect BrowserViewRendererImpl::GetScreenRect() {
+  return gfx::Rect(client_->GetLocationOnScreen(), view_size_);
+}
+
 void BrowserViewRendererImpl::ScheduleComposite() {
   TRACE_EVENT0("android_webview", "BrowserViewRendererImpl::ScheduleComposite");