Run bower update

third_party/polymer/components/paper-dialog-behavior/README.md

 
 <!---
 
 This README is automatically generated from the comments in these files:
 paper-dialog-behavior.html
 
 Edit those files, and our readme bot will duplicate them over here!
 Edit this file, and the bot will squash your changes :)
 
 The bot does some handling of markdown. Please file a bug if it does the wrong
@@ skipping 25 matching lines @@
 ```
 
 `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`.
 
-### Styling
-
-The following custom properties and mixins are available for styling.
-
-| Custom property | Description | Default |
-| --- | --- | --- |
-| `--paper-dialog-background-color` | Dialog background color | `--primary-background-color` |
-| `--paper-dialog-color` | Dialog foreground color | `--primary-text-color` |
-| `--paper-dialog` | Mixin applied to the dialog | `{}` |
-| `--paper-dialog-title` | Mixin applied to the title (`<h2>`) element | `{}` |
-| `--paper-dialog-button-color` | Button area foreground color | `--default-primary-color` |
-
 ### 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 set `aria-modal` and prevent the focus from exiting the element.
 It will also ensure that focus remains in the dialog.