[Android] A prototype of the interactive media notification.

chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
index 93777eeda077b15c2d6bbd6c9d4d78e2fcaa4d71..2f16256664d7295a75c8b84dd72d2d70ce310f57 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
@@ -35,6 +35,7 @@ import org.chromium.chrome.browser.TabState;
 import org.chromium.chrome.browser.TabUma;
 import org.chromium.chrome.browser.TabUma.TabCreationState;
 import org.chromium.chrome.browser.UrlConstants;
+import org.chromium.chrome.browser.UrlUtilities;
 import org.chromium.chrome.browser.contextmenu.ChromeContextMenuPopulator;
 import org.chromium.chrome.browser.contextmenu.ContextMenuParams;
 import org.chromium.chrome.browser.contextmenu.ContextMenuPopulator;
@@ -48,6 +49,9 @@ import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler.Overrid
 import org.chromium.chrome.browser.externalnav.ExternalNavigationParams;
 import org.chromium.chrome.browser.fullscreen.FullscreenManager;
 import org.chromium.chrome.browser.media.MediaNotificationService;
+import org.chromium.chrome.browser.media.ui.MediaInfo;
+import org.chromium.chrome.browser.media.ui.MediaPlaybackListener;
+import org.chromium.chrome.browser.media.ui.NotificationMediaPlaybackControls;
 import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
 import org.chromium.chrome.browser.ntp.NativePageAssassin;
 import org.chromium.chrome.browser.ntp.NativePageFactory;
@@ -84,6 +88,8 @@ import org.chromium.ui.WindowOpenDisposition;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
 
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.Locale;
 
 /**
@@ -93,7 +99,7 @@ import java.util.Locale;
 public class ChromeTab extends Tab {
     public static final int NTP_TAB_ID = -2;
 
-    private static final String TAG = "ChromeTab";
+    private static final String TAG = "cr.ChromeTab";
 
     // URL didFailLoad error code. Should match the value in net_error_list.h.
     public static final int BLOCKED_BY_ADMINISTRATOR = -22;
@@ -359,6 +365,21 @@ public class ChromeTab extends Tab {
      */
     public class TabChromeWebContentsDelegateAndroidImpl
             extends TabChromeWebContentsDelegateAndroid {
+        private MediaPlaybackListener mControlsListener =
+                new MediaPlaybackListener() {
+            @Override
+            public void onPlay() {
+                TabChromeWebContentsDelegateAndroidImpl
+                .nativeOnMediaControlsResume(getWebContents());
+            }
+
+            @Override
+            public void onPause() {
+                TabChromeWebContentsDelegateAndroidImpl
+                .nativeOnMediaControlsPause(getWebContents());
+            }
+        };
+
         /**
          * This method is meant to be overridden by DocumentTab because the
          * TabModelSelector returned by the activity is not correct.
@@ -491,6 +512,22 @@ public class ChromeTab extends Tab {
             handleMediaKey(event);
         }
 
+        @Override
+        public void updateMediaControls(boolean isControllable, boolean isPaused) {
+            if (!isControllable) {
+                NotificationMediaPlaybackControls.hide(getId());
+                return;
+            }
+            String origin = getUrl();
+            try {
+                origin = UrlUtilities.getOriginForDisplay(new URI(getUrl()), true);
+            } catch (URISyntaxException e) {
+                Log.e(TAG, "Wrong syntax for the tab URL when playing media. Showing the URL.");
+            }
+            NotificationMediaPlaybackControls.show(getApplicationContext(), new MediaInfo(
+                    getTitle(), isPaused, origin, getId(), mControlsListener));
+        }
+
         /**
          * Redispatches unhandled media keys. This allows bluetooth headphones with play/pause or
          * other buttons to function correctly.
@@ -892,6 +929,7 @@ public class ChromeTab extends Tab {
             public void destroy() {
                 MediaNotificationService.updateMediaNotificationForTab(
                         getApplicationContext(), getId(), false, false, false, getUrl());
+                NotificationMediaPlaybackControls.hide(getId());
                 super.destroy();
             }
         };
@@ -1101,7 +1139,7 @@ public class ChromeTab extends Tab {
      * Checks if spdy proxy is enabled for input url.
      * @param url Input url to check for spdy setting.
      * @return true if url is enabled for spdy proxy.
-    */
+     */
     protected boolean isSpdyProxyEnabledForUrl(String url) {
         if (DataReductionProxySettings.getInstance().isDataReductionProxyEnabled()
                 && url != null && !url.toLowerCase(Locale.US).startsWith("https://")