Add CombinedDesktopMediaList.

chrome/browser/media/native_desktop_media_list.cc

Index: chrome/browser/media/native_desktop_media_list.cc
diff --git a/chrome/browser/media/native_desktop_media_list.cc b/chrome/browser/media/native_desktop_media_list.cc
index 0c4d2108fd03945558049b451f9fa3e8c419f90f..9b1ef6f4bebc6af65552b09cde055fafaf5c525e 100644
--- a/chrome/browser/media/native_desktop_media_list.cc
+++ b/chrome/browser/media/native_desktop_media_list.cc
@@ -307,7 +307,7 @@ void NativeDesktopMediaList::OnSourcesList(
   for (size_t i = 0; i < sources_.size(); ++i) {
     if (new_source_set.find(sources_[i].id) == new_source_set.end()) {
       sources_.erase(sources_.begin() + i);
-      observer_->OnSourceRemoved(i);
+      observer_->OnSourceRemoved(this, i);
       --i;
     }
   }
@@ -323,7 +323,7 @@ void NativeDesktopMediaList::OnSourcesList(
         sources_.insert(sources_.begin() + i, Source());
         sources_[i].id = new_sources[i].id;
         sources_[i].name = new_sources[i].name;
-        observer_->OnSourceAdded(i);
+        observer_->OnSourceAdded(this, i);
       }
     }
   }
@@ -347,12 +347,12 @@ void NativeDesktopMediaList::OnSourcesList(
       sources_.erase(sources_.begin() + old_pos);
       sources_.insert(sources_.begin() + pos, temp);
 
-      observer_->OnSourceMoved(old_pos, pos);
+      observer_->OnSourceMoved(this, old_pos, pos);
     }
 
     if (sources_[pos].name != new_sources[pos].name) {
       sources_[pos].name = new_sources[pos].name;
-      observer_->OnSourceNameChanged(pos);
+      observer_->OnSourceNameChanged(this, pos);
     }
     ++pos;
   }
@@ -363,7 +363,7 @@ void NativeDesktopMediaList::OnSourceThumbnail(
     const gfx::ImageSkia& image) {
   DCHECK_LT(index, static_cast<int>(sources_.size()));
   sources_[index].thumbnail = image;
-  observer_->OnSourceThumbnailChanged(index);
+  observer_->OnSourceThumbnailChanged(this, index);
 }
 
 void NativeDesktopMediaList::OnRefreshFinished() {