docs: Updated Android 5.0 API overview to reflect changed WebView behavior for...

<li><a href="#BehaviorGetRecentTasks">If your app uses getRecentTasks()...</a></li>

<li><a href="#64BitSupport">If you are using the Android Native Development Kit (NDK)...</a></li>

<li><a href="#BindService">If your app binds to a Service...</a></li>

<li><a href="#BehaviorWebView">If your app uses a WebView...</a></li>

    </ol>

  </li>

  <li><a href="#UI">User Interface</a>

vibration.</p>

<p>Setting the device to

{@link android.media.AudioManager#RINGER_MODE_SILENT RINGER_MODE_SILENT} now

causes the device to enter the new priority mode. The device leaves priority

{@link android.media.AudioManager#RINGER_MODE_SILENT RINGER_MODE_SILENT} causes

the device to enter the new priority mode. The device leaves priority

mode if you set it to

{@link android.media.AudioManager#RINGER_MODE_NORMAL RINGER_MODE_NORMAL} or

{@link android.media.AudioManager#RINGER_MODE_NORMAL RINGER_MODE_VIBRATE}.</p>

To ensure your app is secure, use an explicit intent when starting or binding

your {@link android.app.Service}, and do not declare intent filters for the service.</p>

<h3 id="BehaviorWebView">If your app uses WebView...</h3>

<p>Android 5.0 changes the default behavior for your app.</p>

<ul>

<li><strong>If your app targets API level 21 or higher:</strong>

  <ul>

    <li>The system

  blocks <a href="https://developer.mozilla.org/en-US/docs/Security/MixedContent"

  class="external-link">mixed content</a> and third party cookies by default. To allow mixed

  content and third party cookies, use the

  {@link android.webkit.WebSettings#setMixedContentMode(int) setMixedContentMode()}

and {@link android.webkit.CookieManager#setAcceptThirdPartyCookies(android.webkit.WebView, boolean) setAcceptThirdPartyCookies()}

methods respectively.</li>

    <li>The system now intelligently chooses portions of the HTML

      document to draw. This new default behavior helps to reduce memory

      footprint and increase performance. If you want to

      render the whole document at once, disable this optimization by calling

      {@link android.webkit.WebView#enableSlowWholeDocumentDraw()}.</li>

  </ul>

</li>

<li><strong>If your app targets API levels lower than 21:</strong> The system

  allows mixed content and third party cookies, and always renders the whole

  document at once.</li>

</ul>

<h2 id="UI">User Interface</h2>

<h3 id="MaterialDesign">Material design support</h3>

method.</p>

<p>For an example of how to use the new APIs, see the {@code MediaProjectionDemo}

class in the {@code ApiDemos} sample project.</p>

class in the sample project.</p>

<h2 id="Notifications">Notifications</h2>