WebView: remove "</p>" tags from docs

Docs change only, no change to logic.

This removes closing "</p>" tags from WebView API docs, as per API
guidelines.

This also adds a trailing newline to a <pre> block for consistency.

Other than the modified <pre> block, this has no reader-visible change,
it merely complies with best practices from Android API guidelines.

Bug: 65381884
Test: make docs (and manually compare before/after for differences)
Change-Id: I2f911a43b88a8897d9d1b5c7945360580491883d
diff --git a/core/java/android/webkit/WebChromeClient.java b/core/java/android/webkit/WebChromeClient.java
index 81aa2f3..f07ecbf 100644
--- a/core/java/android/webkit/WebChromeClient.java
+++ b/core/java/android/webkit/WebChromeClient.java
@@ -289,7 +289,7 @@
      * (API level > {@link android.os.Build.VERSION_CODES#M})
      * this method is only called for requests originating from secure
      * origins such as https. On non-secure origins geolocation requests
-     * are automatically denied.</p>
+     * are automatically denied.
      *
      * @param origin The origin of the web content attempting to use the
      *               Geolocation API.