Capture chrome browser windows from internal rendering procedure for windows and linux

chrome/browser/media/desktop_media_list_base.h

Index: chrome/browser/media/desktop_media_list_base.h
diff --git a/chrome/browser/media/desktop_media_list_base.h b/chrome/browser/media/desktop_media_list_base.h
index 6c0feb11373953c5edf66a070203145349b4ed34..1ac07a66e110c08a5bc3597da199a09e97aa9839 100644
--- a/chrome/browser/media/desktop_media_list_base.h
+++ b/chrome/browser/media/desktop_media_list_base.h
@@ -8,6 +8,10 @@
 #include "chrome/browser/media/desktop_media_list.h"
 #include "content/public/browser/desktop_media_id.h"
 
+namespace gfx {
+class Image;
+}
+
 // Thumbnail size is 100*100 pixels
 static const int kDefaultThumbnailSize = 100;
 
@@ -27,6 +31,8 @@ class DesktopMediaListBase : public DesktopMediaList {
   int GetSourceCount() const override;
   const Source& GetSource(int index) const override;
 
+  static uint32_t GetImageHash(const gfx::Image& image);
+
  protected:
   struct SourceDescription {
     SourceDescription(content::DesktopMediaID id, const base::string16& name);