Add HD support to Android if we detect a hardware video encoder that can be used. This Change the internal class MediaCodecVideoEncoder to have a one public method for checking if the platform is supported. It also adds &hd=true to the reqest url a hardware encoder is detected.

BUG=3934
R=glaznev@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/30749004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7520 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java

@@ -43,6 +43,8 @@ import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.TextView;
 
+import org.webrtc.MediaCodecVideoEncoder;
+
 /**
  * Handles the initial setup where the user selects which room to join.
  */
@@ -98,6 +100,10 @@ public class ConnectActivity extends Activity {
         } else {
           url += "/?r=" + roomEditText.getText();
         }
+
+        if (MediaCodecVideoEncoder.isPlatformSupported()) {
+          url += "&hd=true";
+        }
         // TODO(kjellander): Add support for custom parameters to the URL.
         connectToRoom(url);
       }