Add name to hosted_ui quad

This will make it easier to write tests and send events directly
to the dialog.

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_vr;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ib9a25666a213e1279a6491bd61331b4e7c8321e4
Reviewed-on: https://chromium-review.googlesource.com/1012917
Commit-Queue: Amirhossein Simjour <asimjour@chromium.org>
Reviewed-by: Yash Malik <ymalik@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551008}

chrome/browser/vr/elements/ui_element_name.cc

@@ -79,6 +79,7 @@ static const char* g_ui_element_name_strings[] = {
     "kOmniboxOuterLayout",
     "kOmniboxShadow",
     "k2dBrowsingHostedUi",
+    "k2dBrowsingHostedUiContent",
     "k2dBrowsingVisibiltyControlForVoice",
     "k2dBrowsingVisibilityControlForPrompt",
     "k2dBrowsingVisibiltyControlForSiteInfoPrompt",
@@ -126,6 +127,7 @@ static const char* g_ui_element_name_strings[] = {
     "kBackgroundBottom",
     "kWebVrFloor",
     "kWebVrHostedUi",
+    "kWebVrHostedUiContent",
     "kWebVrTimeoutRoot",
     "kWebVrTimeoutSpinner",
     "kWebVrBackground",

chrome/browser/vr/elements/ui_element_name.h

@@ -78,6 +78,7 @@ enum UiElementName {
   kOmniboxOuterLayout,
   kOmniboxShadow,
   k2dBrowsingHostedUi,
+  k2dBrowsingHostedUiContent,
   k2dBrowsingVisibiltyControlForVoice,
   k2dBrowsingVisibilityControlForPrompt,
   k2dBrowsingVisibiltyControlForSiteInfoPrompt,
@@ -125,6 +126,7 @@ enum UiElementName {
   kBackgroundBottom,
   kWebVrFloor,
   kWebVrHostedUi,
+  kWebVrHostedUiContent,
   kWebVrTimeoutRoot,
   kWebVrTimeoutSpinner,
   kWebVrBackground,

chrome/browser/vr/ui_scene_creator.cc

@@ -677,9 +677,11 @@ std::unique_ptr<UiElement> CreateHostedUi(
     UiBrowserInterface* browser,
     ContentInputDelegate* content_input_delegate,
     UiElementName name,
+    UiElementName content_name,
     float distance) {
-  auto hosted_ui = Create<ContentElement>(
-      kNone, kPhaseForeground, content_input_delegate, base::DoNothing());
+  auto hosted_ui =
+      Create<ContentElement>(content_name, kPhaseForeground,
+                             content_input_delegate, base::DoNothing());
   hosted_ui->SetSize(kContentWidth * kHostedUiWidthRatio,
                      kContentHeight * kHostedUiHeightRatio);
   // The hosted UI doesn't steal focus so that clikcing on an autofill
@@ -882,9 +884,9 @@ void UiSceneCreator::CreateScene() {
 }
 
 void UiSceneCreator::Create2dBrowsingHostedUi() {
-  auto hosted_ui_root =
-      CreateHostedUi(model_, browser_, content_input_delegate_,
-                     k2dBrowsingHostedUi, kContentDistance);
+  auto hosted_ui_root = CreateHostedUi(
+      model_, browser_, content_input_delegate_, k2dBrowsingHostedUi,
+      k2dBrowsingHostedUiContent, kContentDistance);
   scene_->AddUiElement(k2dBrowsingRepositioner, std::move(hosted_ui_root));
 }
 
@@ -1304,7 +1306,7 @@ void UiSceneCreator::CreateWebVrSubtree() {
   // This is needed to for accepting permissions in WebVR mode.
   auto hosted_ui_root =
       CreateHostedUi(model_, browser_, content_input_delegate_, kWebVrHostedUi,
-                     kTimeoutScreenDisatance);
+                     kWebVrHostedUiContent, kTimeoutScreenDisatance);
   scene_->AddUiElement(kWebVrViewportAwareRoot, std::move(hosted_ui_root));
 
   // Note, this cannot be a descendant of the viewport aware root, otherwise it