Add Galaxy S4 and Nexus 4 to platform AEC whitelist.

TESTED=Good quality AEC using apprtc.

Review URL: https://codereview.chromium.org/129593002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244117 0039d316-1c4b-4281-b951-d872f2087c98

media/base/android/java/src/org/chromium/media/AudioManagerAndroid.java

@@ -384,7 +384,9 @@ class AudioManagerAndroid {
         // quality platform echo cancellation.
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN &&
                AcousticEchoCanceler.isAvailable() &&
-               (Build.MODEL.equals("Nexus 5") ||
+               (Build.MODEL.equals("GT-I9500") ||  // Galaxy S4
+                Build.MODEL.equals("Nexus 4") ||
+                Build.MODEL.equals("Nexus 5") ||
                 Build.MODEL.equals("Nexus 7"));
     }