Desktop chrome tab capture-chooseDesktopMedia()

chrome/browser/media/desktop_media_list_ash.h

Index: chrome/browser/media/desktop_media_list_ash.h
diff --git a/chrome/browser/media/desktop_media_list_ash.h b/chrome/browser/media/desktop_media_list_ash.h
index 476288db0bec9203a02e26e327efa55e512fa8f7..eb5bb32b1c097baaed23821453475c955671fa62 100644
--- a/chrome/browser/media/desktop_media_list_ash.h
+++ b/chrome/browser/media/desktop_media_list_ash.h
@@ -31,11 +31,7 @@ class Image;
 // native windows.
 class DesktopMediaListAsh : public DesktopMediaList {
  public:
-  enum SourceTypes {
-    SCREENS = 1,
-    WINDOWS = 2,
-  };
-
+  enum SourceTypes { SCREENS = 1, WINDOWS = 2, TABS = 4 };
   explicit DesktopMediaListAsh(int source_types);
   ~DesktopMediaListAsh() override;
 
@@ -51,9 +47,11 @@ class DesktopMediaListAsh : public DesktopMediaList {
   // Struct used to represent sources list the model gets from the Worker.
   struct SourceDescription {
     SourceDescription(content::DesktopMediaID id, const base::string16& name);
+    SourceDescription() = default;
 
     content::DesktopMediaID id;
     base::string16 name;
+    gfx::ImageSkia thumbnail;
   };
 
   // Order comparator for sources. Used to sort list of sources.
@@ -65,6 +63,8 @@ class DesktopMediaListAsh : public DesktopMediaList {
       std::vector<DesktopMediaListAsh::SourceDescription>* windows,
       aura::Window* root_window,
       int container_id);
+  void EnumerateTabs(
+      std::vector<DesktopMediaListAsh::SourceDescription>* sources);
   void EnumerateSources(
       std::vector<DesktopMediaListAsh::SourceDescription>* windows);
   void CaptureThumbnail(content::DesktopMediaID id, aura::Window* window);