Polymer: Remove unused paper-dialog and paper-dialog-behavior.

third_party/polymer/v1_0/components-chromium/paper-dialog-behavior/paper-dialog-behavior-extracted.js

-/**
-Use `Polymer.PaperDialogBehavior` and `paper-dialog-shared-styles.html` to implement a Material Design
-dialog.
-
-For example, if `<paper-dialog-impl>` implements this behavior:
-
-    <paper-dialog-impl>
-        <h2>Header</h2>
-        <div>Dialog body</div>
-        <div class="buttons">
-            <paper-button dialog-dismiss>Cancel</paper-button>
-            <paper-button dialog-confirm>Accept</paper-button>
-        </div>
-    </paper-dialog-impl>
-
-`paper-dialog-shared-styles.html` provide styles for a header, content area, and an action area for buttons.
-Use the `<h2>` tag for the header and the `buttons` class for the action area. You can use the
-`paper-dialog-scrollable` element (in its own repository) if you need a scrolling content area.
-
-Use the `dialog-dismiss` and `dialog-confirm` attributes on interactive controls to close the
-dialog. If the user dismisses the dialog with `dialog-confirm`, the `closingReason` will update
-to include `confirmed: true`.
-
-### Accessibility
-
-This element has `role="dialog"` by default. Depending on the context, it may be more appropriate
-to override this attribute with `role="alertdialog"`.
-
-If `modal` is set, the element will prevent the focus from exiting the element.
-It will also ensure that focus remains in the dialog.
-
-@hero hero.svg
-@demo demo/index.html
-@polymerBehavior Polymer.PaperDialogBehavior
-*/
-
-  Polymer.PaperDialogBehaviorImpl = {
-
-    hostAttributes: {
-      'role': 'dialog',
-      'tabindex': '-1'
-    },
-
-    properties: {
-
-      /**
-       * If `modal` is true, this implies `no-cancel-on-outside-click`, `no-cancel-on-esc-key` and `with-backdrop`.
-       */
-      modal: {
-        type: Boolean,
-        value: false
-      }
-
-    },
-
-    observers: [
-      '_modalChanged(modal, _readied)'
-    ],
-
-    listeners: {
-      'tap': '_onDialogClick'
-    },
-
-    ready: function () {
-      // Only now these properties can be read.
-      this.__prevNoCancelOnOutsideClick = this.noCancelOnOutsideClick;
-      this.__prevNoCancelOnEscKey = this.noCancelOnEscKey;
-      this.__prevWithBackdrop = this.withBackdrop;
-    },
-
-    _modalChanged: function(modal, readied) {
-      // modal implies noCancelOnOutsideClick, noCancelOnEscKey and withBackdrop.
-      // We need to wait for the element to be ready before we can read the
-      // properties values.
-      if (!readied) {
-        return;
-      }
-
-      if (modal) {
-        this.__prevNoCancelOnOutsideClick = this.noCancelOnOutsideClick;
-        this.__prevNoCancelOnEscKey = this.noCancelOnEscKey;
-        this.__prevWithBackdrop = this.withBackdrop;
-        this.noCancelOnOutsideClick = true;
-        this.noCancelOnEscKey = true;
-        this.withBackdrop = true;
-      } else {
-        // If the value was changed to false, let it false.
-        this.noCancelOnOutsideClick = this.noCancelOnOutsideClick &&
-          this.__prevNoCancelOnOutsideClick;
-        this.noCancelOnEscKey = this.noCancelOnEscKey &&
-          this.__prevNoCancelOnEscKey;
-        this.withBackdrop = this.withBackdrop && this.__prevWithBackdrop;
-      }
-    },
-
-    _updateClosingReasonConfirmed: function(confirmed) {
-      this.closingReason = this.closingReason || {};
-      this.closingReason.confirmed = confirmed;
-    },
-
-    /**
-     * Will dismiss the dialog if user clicked on an element with dialog-dismiss
-     * or dialog-confirm attribute.
-     */
-    _onDialogClick: function(event) {
-      // Search for the element with dialog-confirm or dialog-dismiss,
-      // from the root target until this (excluded).
-      var path = Polymer.dom(event).path;
-      for (var i = 0; i < path.indexOf(this); i++) {
-        var target = path[i];
-        if (target.hasAttribute && (target.hasAttribute('dialog-dismiss') || target.hasAttribute('dialog-confirm'))) {
-          this._updateClosingReasonConfirmed(target.hasAttribute('dialog-confirm'));
-          this.close();
-          event.stopPropagation();
-          break;
-        }
-      }
-    }
-
-  };
-
-  /** @polymerBehavior */
-  Polymer.PaperDialogBehavior = [Polymer.IronOverlayBehavior, Polymer.PaperDialogBehaviorImpl];