Discardable property support on TabManager

chrome/browser/memory/tab_manager.cc

Index: chrome/browser/memory/tab_manager.cc
diff --git a/chrome/browser/memory/tab_manager.cc b/chrome/browser/memory/tab_manager.cc
index 6fa39ad66f4abcae4e9a2b8fd9c2677945db888f..b95860e7d9e63d1acca1bbb5c7e5c06cdd72c66c 100644
--- a/chrome/browser/memory/tab_manager.cc
+++ b/chrome/browser/memory/tab_manager.cc
@@ -906,4 +906,19 @@ void TabManager::OnDiscardedStateChange(content::WebContents* contents,
                     OnDiscardedStateChange(contents, is_discarded));
 }
 
+void TabManager::OnDiscardableStateChange(content::WebContents* contents,
+                                          bool is_discardable) {
+  FOR_EACH_OBSERVER(TabManagerObserver, observers_,
+                    OnDiscardableStateChange(contents, is_discardable));
+}
+
+void TabManager::SetDiscardableState(content::WebContents* contents,
+                                     bool state) {
+  GetWebContentsData(contents)->SetDiscardableState(state);
+}
+
+bool TabManager::IsDiscardable(content::WebContents* contents) {
+  return GetWebContentsData(contents)->IsDiscardable();
+}
+
 }  // namespace memory