| Index: chrome/browser/resources/print_preview/previewarea/margin_control.js
 | 
| diff --git a/chrome/browser/resources/print_preview/previewarea/margin_control.js b/chrome/browser/resources/print_preview/previewarea/margin_control.js
 | 
| index 07d2dcc6ad8f75d7a99a814c7cfd5e231d8906a1..f324dc99c53a8a46128ece5d9fadf8cc311bc8b3 100644
 | 
| --- a/chrome/browser/resources/print_preview/previewarea/margin_control.js
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| +++ b/chrome/browser/resources/print_preview/previewarea/margin_control.js
 | 
| @@ -99,7 +99,7 @@ cr.define('print_preview', function() {
 | 
|       * @private
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|       */
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|      this.isInError_ = false;
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| -  };
 | 
| +  }
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|  
 | 
|    /**
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|     * Event types dispatched by the margin control.
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| @@ -327,6 +327,7 @@ cr.define('print_preview', function() {
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|            this.getElement(),
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|            'transitionend',
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|            this.onTransitionEnd_.bind(this));
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| +      assert(this.textbox_);
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|        this.tracker.add(
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|            this.textbox_, 'input', this.onTextboxInput_.bind(this));
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|        this.tracker.add(
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| 
 |