[vr] Added additional state for in-headset display for windows

Bug: 912767
Change-Id: I872e6809c4bf8af1d68f4e59cd43ff475958db2a
Reviewed-on: https://chromium-review.googlesource.com/c/1370906
Commit-Queue: Suman Kancherla <sumankancherla@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Reviewed-by: Bill Orr <billorr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616099}

chrome/browser/vr/vr_tab_helper.cc

@@ -51,6 +51,36 @@ bool VrTabHelper::IsInVr(content::WebContents* contents) {
   return vr_tab_helper->is_in_vr();
 }
 
+/* static */
+bool VrTabHelper::IsContentDisplayedInHeadset(content::WebContents* contents) {
+  if (!contents)
+    return false;
+
+  VrTabHelper* vr_tab_helper = VrTabHelper::FromWebContents(contents);
+  if (!vr_tab_helper) {
+    VrTabHelper::CreateForWebContents(contents);
+    vr_tab_helper = VrTabHelper::FromWebContents(contents);
+  }
+  return vr_tab_helper->is_content_displayed_in_headset();
+}
+
+/* static */
+void VrTabHelper::SetIsContentDisplayedInHeadset(content::WebContents* contents,
+                                                 bool state) {
+  if (!contents)
+    return;
+  VrTabHelper* vr_tab_helper = VrTabHelper::FromWebContents(contents);
+  if (!vr_tab_helper) {
+    VrTabHelper::CreateForWebContents(contents);
+    vr_tab_helper = VrTabHelper::FromWebContents(contents);
+  }
+  vr_tab_helper->SetIsContentDisplayedInHeadset(state);
+}
+
+void VrTabHelper::SetIsContentDisplayedInHeadset(bool state) {
+  is_content_displayed_in_headset_ = state;
+}
+
 bool VrTabHelper::IsUiSuppressedInVr(content::WebContents* contents,
                                      UiSuppressedElement element) {
   if (!IsInVr(contents))

chrome/browser/vr/vr_tab_helper.h

@@ -21,8 +21,18 @@ class VrTabHelper : public content::WebContentsUserData<VrTabHelper> {
   // up on the WebContents.
   void SetIsInVr(bool is_in_vr);
 
+  bool is_content_displayed_in_headset() const {
+    return is_content_displayed_in_headset_;
+  }
+
+  void SetIsContentDisplayedInHeadset(bool state);
+
   static bool IsInVr(content::WebContents* contents);
 
+  static bool IsContentDisplayedInHeadset(content::WebContents* contents);
+  static void SetIsContentDisplayedInHeadset(content::WebContents* contents,
+                                             bool state);
+
   // If suppressed, this function will log a UMA stat.
   static bool IsUiSuppressedInVr(content::WebContents* contents,
                                  UiSuppressedElement element);
@@ -33,7 +43,21 @@ class VrTabHelper : public content::WebContentsUserData<VrTabHelper> {
   friend class content::WebContentsUserData<VrTabHelper>;
 
   content::WebContents* web_contents_;
+
+  // If is_in_vr_ is true, that means that the only content displayed is
+  // inside vr (for example, VR browsing or immersive experience
+  // on an Android phone with headset on).
+  // If is_content_displayed_in_headset_ is true, it means content is displayed
+  // both in VR and on the desktop (example: presenting WebXR
+  // content from a browser on Windows).
+  //
+  // If we have external monitors on Android, we'd want
+  // is_content_displayed_in_headset_ to be true there, and likewise
+  // is_in_vr_ could be true if content was only available in-headset on
+  // Windows.
+  // TODO(cassew): Rename below vars to more intuitive names.
   bool is_in_vr_ = false;
+  bool is_content_displayed_in_headset_ = false;
 
   WEB_CONTENTS_USER_DATA_KEY_DECL();