Merge to 2883 "[DevTools] Support top/bottom show sidebar button."

third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js

Index: third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js b/third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js
index b857a2574907eee740aee6775a6f35fbc9b917b8..887d3164eaa676cb50faf858447994ed50b28efc 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js
+++ b/third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js
@@ -48,6 +48,8 @@ WebInspector.SourcesView = function()
             this._toolbarEditorActions.appendToolbarItem(actions[i].button(this));
     }
     this._scriptViewToolbar = new WebInspector.Toolbar("", this._toolbarContainerElement);
+    this._toolbarContainerElement.createChild("div", "sources-toolbar-spacer");
+    this._bottomToolbar = new WebInspector.Toolbar("", this._toolbarContainerElement);
 
     WebInspector.startBatchUpdate();
     workspace.uiSourceCodes().forEach(this._addUISourceCode.bind(this));
@@ -148,6 +150,14 @@ WebInspector.SourcesView.prototype = {
     },
 
     /**
+     * @return {!WebInspector.Toolbar}
+     */
+    bottomToolbar: function()
+    {
+        return this._bottomToolbar;
+    },
+
+    /**
      * @param {!Array.<!WebInspector.KeyboardShortcut.Descriptor>} keys
      * @param {function(!Event=):boolean} handler
      */