Display tab capture status icon on the shared tab.

Register the shared tab with MediaStreamCaptureIndicator, to indicate
that the shared tab is being captured.

Bug: 980110
Change-Id: Ib81567f59ae9d978e57ebd481fb7ac41dd207e18
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1796671Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Marina Ciocea <marinaciocea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#695652}

chrome/browser/ui/views/tab_sharing/tab_sharing_ui_views.cc

@@ -10,6 +10,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ -104,7 +105,7 @@ std::unique_ptr<TabSharingUI> TabSharingUI::Create(
 
 TabSharingUIViews::TabSharingUIViews(const content::DesktopMediaID& media_id,
                                      base::string16 app_name)
-    : app_name_(std::move(app_name)) {
+    : shared_tab_media_id_(media_id), app_name_(std::move(app_name)) {
   shared_tab_ = content::WebContents::FromRenderFrameHost(
       content::RenderFrameHost::FromID(
           media_id.web_contents_id.render_process_id,
@@ -126,6 +127,7 @@ gfx::NativeViewId TabSharingUIViews::OnStarted(
   stop_callback_ = std::move(stop_callback);
   CreateInfobarsForAllTabs();
   SetContentsBorderVisible(shared_tab_, true);
+  CreateTabCaptureIndicator();
   return 0;
 }
 
@@ -265,3 +267,14 @@ void TabSharingUIViews::RemoveInfobarsForAllTabs() {
 
   infobars_.clear();
 }
+
+void TabSharingUIViews::CreateTabCaptureIndicator() {
+  const blink::MediaStreamDevice device(
+      blink::mojom::MediaStreamType::GUM_TAB_VIDEO_CAPTURE,
+      shared_tab_media_id_.ToString(), std::string());
+  tab_capture_indicator_ui_ = MediaCaptureDevicesDispatcher::GetInstance()
+                                  ->GetMediaStreamCaptureIndicator()
+                                  ->RegisterMediaStream(shared_tab_, {device});
+  tab_capture_indicator_ui_->OnStarted(
+      base::OnceClosure(), content::MediaStreamUI::SourceCallback());
+}

chrome/browser/ui/views/tab_sharing/tab_sharing_ui_views.h

@@ -74,11 +74,15 @@ class TabSharingUIViews : public TabSharingUI,
   void CreateInfobarForWebContents(content::WebContents* contents);
   void RemoveInfobarsForAllTabs();
 
+  void CreateTabCaptureIndicator();
+
   std::map<content::WebContents*, infobars::InfoBar*> infobars_;
+  content::DesktopMediaID shared_tab_media_id_;
   const base::string16 app_name_;
   content::WebContents* shared_tab_;
   base::string16 shared_tab_name_;
   Profile* profile_;
+  std::unique_ptr<content::MediaStreamUI> tab_capture_indicator_ui_;
 
   content::MediaStreamUI::SourceCallback source_callback_;
   base::OnceClosure stop_callback_;