Made the bookmarks extension APIs aware of managed bookmarks.

chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc

Index: chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
diff --git a/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc b/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
index 84deefcf15911ba6d4522fadab9a2bfbc5a974d9..96de4fd68a89d99027e73f26791781f7e1dd85e9 100644
--- a/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
+++ b/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
@@ -354,6 +354,14 @@ bool ClipboardBookmarkManagerFunction::CopyOrCut(bool cut,
   BookmarkModel* model = BookmarkModelFactory::GetForProfile(GetProfile());
   std::vector<const BookmarkNode*> nodes;
   EXTENSION_FUNCTION_VALIDATE(GetNodesFromVector(model, id_list, &nodes));
+  if (cut) {
+    for (size_t i = 0; i < nodes.size(); ++i) {
+      if (model->IsManaged(nodes[i])) {
+        error_ = bookmark_keys::kModifyManagedError;
+        return false;
+      }
+    }
+  }
   bookmark_utils::CopyToClipboard(model, nodes, cut);
   return true;
 }
@@ -385,6 +393,10 @@ bool BookmarkManagerPrivatePasteFunction::RunOnReady() {
     error_ = bookmark_keys::kNoParentError;
     return false;
   }
+  if (model->IsManaged(parent_node)) {
+    error_ = bookmark_keys::kModifyManagedError;
+    return false;
+  }
   bool can_paste = bookmark_utils::CanPasteFromClipboard(parent_node);
   if (!can_paste)
     return false;
@@ -419,7 +431,8 @@ bool BookmarkManagerPrivateCanPasteFunction::RunOnReady() {
     error_ = bookmark_keys::kNoParentError;
     return false;
   }
-  bool can_paste = bookmark_utils::CanPasteFromClipboard(parent_node);
+  bool can_paste = bookmark_utils::CanPasteFromClipboard(parent_node) &&
+                   !model->IsManaged(parent_node);
   SetResult(new base::FundamentalValue(can_paste));
   return true;
 }
@@ -437,6 +450,10 @@ bool BookmarkManagerPrivateSortChildrenFunction::RunOnReady() {
     error_ = bookmark_keys::kNoParentError;
     return false;
   }
+  if (model->IsManaged(parent_node)) {
+    error_ = bookmark_keys::kModifyManagedError;
+    return false;
+  }
   model->SortChildren(parent_node);
   return true;
 }
@@ -568,6 +585,10 @@ bool BookmarkManagerPrivateDropFunction::RunOnReady() {
     error_ = bookmark_keys::kNoParentError;
     return false;
   }
+  if (model->IsManaged(drop_parent)) {
+    error_ = bookmark_keys::kModifyManagedError;
+    return false;
+  }
 
   int drop_index;
   if (params->index)