[Merge M49] [TabManager] Protect tabs that are using camera/microphone.

chrome/browser/memory/tab_manager.h

Index: chrome/browser/memory/tab_manager.h
diff --git a/chrome/browser/memory/tab_manager.h b/chrome/browser/memory/tab_manager.h
index cc838c9e2da793ec6225b9737f3bccb69f143231..52b84d382b9526fa8374605f5b7cc2cdbc900fe2 100644
--- a/chrome/browser/memory/tab_manager.h
+++ b/chrome/browser/memory/tab_manager.h
@@ -167,8 +167,9 @@ class TabManager : public TabStripModelObserver {
                         int reason) override;
 
   // Returns true if the tab is currently playing audio or has played audio
-  // recently.
-  bool IsAudioTab(content::WebContents* contents) const;
+  // recently, or if the tab is currently accessing the camera, microphone or
+  // mirroring the display.
+  bool IsMediaTab(content::WebContents* contents) const;
 
   // Returns the WebContentsData associated with |contents|. Also takes care of
   // creating one if needed.