docs: Javadoc typo fix

Doc is staged to:

http://go/dac-stage/reference/android/webkit/WebView.html

Exempt-From-Owner-Approval: Doc-only change
Bug: 20926682
Test: make ds-docs
Change-Id: Ib966923b75c8a70da5415f38e4217caeecc44cbe
Merged-In: Ib966923b75c8a70da5415f38e4217caeecc44cbe
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index f39b73e..5178a97 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -251,7 +251,7 @@
  * density, or high density screens, respectively. For example:
  * <pre>
  * &lt;link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /&gt;</pre>
- * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5,
+ * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ratio of 1.5,
  * which is the high density pixel ratio.
  * </li>
  * </ul>