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diff --git a/chromium/third_party/catapult/third_party/polymer2/bower_components/iron-resizable-behavior/iron-resizable-behavior.d.ts b/chromium/third_party/catapult/third_party/polymer2/bower_components/iron-resizable-behavior/iron-resizable-behavior.d.ts
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+++ b/chromium/third_party/catapult/third_party/polymer2/bower_components/iron-resizable-behavior/iron-resizable-behavior.d.ts
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+/**
+ * DO NOT EDIT
+ *
+ * This file was automatically generated by
+ *   https://github.com/Polymer/gen-typescript-declarations
+ *
+ * To modify these typings, edit the source file(s):
+ *   iron-resizable-behavior.html
+ */
+
+/// <reference path="../polymer/types/polymer.d.ts" />
+
+declare namespace Polymer {
+
+  /**
+   * `IronResizableBehavior` is a behavior that can be used in Polymer elements to
+   * coordinate the flow of resize events between "resizers" (elements that control the
+   * size or hidden state of their children) and "resizables" (elements that need to be
+   * notified when they are resized or un-hidden by their parents in order to take
+   * action on their new measurements).
+   *
+   * Elements that perform measurement should add the `IronResizableBehavior` behavior to
+   * their element definition and listen for the `iron-resize` event on themselves.
+   * This event will be fired when they become showing after having been hidden,
+   * when they are resized explicitly by another resizable, or when the window has been
+   * resized.
+   *
+   * Note, the `iron-resize` event is non-bubbling.
+   */
+  interface IronResizableBehavior {
+
+    /**
+     * The closest ancestor element that implements `IronResizableBehavior`.
+     */
+    _parentResizable: object|null|undefined;
+
+    /**
+     * True if this element is currently notifying its descendant elements of
+     * resize.
+     */
+    _notifyingDescendant: boolean|null|undefined;
+    created(): void;
+    attached(): void;
+    detached(): void;
+
+    /**
+     * Can be called to manually notify a resizable and its descendant
+     * resizables of a resize change.
+     */
+    notifyResize(): void;
+
+    /**
+     * Used to assign the closest resizable ancestor to this resizable
+     * if the ancestor detects a request for notifications.
+     */
+    assignParentResizable(parentResizable: any): void;
+
+    /**
+     * Used to remove a resizable descendant from the list of descendants
+     * that should be notified of a resize change.
+     */
+    stopResizeNotificationsFor(target: any): void;
+
+    /**
+     * This method can be overridden to filter nested elements that should or
+     * should not be notified by the current element. Return true if an element
+     * should be notified, or false if it should not be notified.
+     *
+     * @param element A candidate descendant element that
+     * implements `IronResizableBehavior`.
+     * @returns True if the `element` should be notified of resize.
+     */
+    resizerShouldNotify(element: HTMLElement|null): boolean;
+    _onDescendantIronResize(event: any): void;
+    _fireResize(): void;
+    _onIronRequestResizeNotifications(event: any): void;
+    _parentResizableChanged(parentResizable: any): void;
+    _notifyDescendant(descendant: any): void;
+    _requestResizeNotifications(): void;
+  }
+
+  const IronResizableBehavior: object;
+}