Upgrade to 1.0 and switch clients to dom-repeat where needed.

third_party/polymer/v0_8/components-chromium/paper-dialog-behavior/README.md

Index: third_party/polymer/v0_8/components-chromium/paper-dialog-behavior/README.md
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+# paper-dialog-behavior
+
+`paper-dialog-behavior` implements behavior related to a Material Design dialog. Use this behavior
+and include `paper-dialog-common.css` in your element to implement a dialog.
+
+`paper-dialog-common.css` 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.
+
+For example, if `<paper-dialog-impl>` implements this behavior:
+
+```html
+<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>
+```