KeyEvent: update comment

Change-Id: I1ea491e7e23670bf0ea83392710010b557803178
FIX Null Pointer Exception on dialog cancel

Null Pointer Exception occurs because mWebViewCore instance
is made to null while calling destroyJava(). When
1.webview hosting activity goest to background, without calling webview onPause().
2. If app is launched again (having launchmode:singletask ) and another activity (not  webview hosting) comes on top top.
3. It destorys the previous activity holding webview which internally tries to cancel the dialog, but webviewcore instance is null.
Null pointer exception is raised.

Change-Id: Idbcd30d0b0d4a35819444bbaa5c73cced8bb35a3
Signed-off-by: Amit Kumar <amitkecian@gmail.com>
Fix starting window memory leak

If starting window is added to arrays like mViews in
WindowManagerImpl.java, but not accepted by WindowManagerService,
we leak starting windows. To avoid leaking, remove the view
from WindowManager.

Change-Id: I4d98b883e9dfaf5e71bdece385643ba1b59b2633
Allow three digit phone numbers

The comment for the PHONE pattern says:

"<digit><digit|sdd>+<digit>"

But the actual pattern requires that the string contains
more than that. A phone number should be allowed to be
three digits.

Change-Id: I86d2f3d634cd0c1654dad9814906f151055dc23a
Fix NPE when pasting non-text from Clipboard

When copying a link from a bookmark and then pasting it into
a textfield a NullPointerException will occur.
A ClipData.Item is not guaranteed to always contain a text string
and therefore getText() can be set to null.

Using method coerceToText() instead of getText() makes sure that
a text string is always returned.

Change-Id: I81343c0371835a3a7a52045dcd1760e69e59a967