enable subtitle support and the new fullscreen video

content/shell/android/java/src/org/chromium/content_shell/ShellManager.java

Index: content/shell/android/java/src/org/chromium/content_shell/ShellManager.java
diff --git a/content/shell/android/java/src/org/chromium/content_shell/ShellManager.java b/content/shell/android/java/src/org/chromium/content_shell/ShellManager.java
index 96b4112d608995e0bdf307086edaa3c3429bc684..6d6db1c98e96ad59be3eb2d7e158042d5eb53916 100644
--- a/content/shell/android/java/src/org/chromium/content_shell/ShellManager.java
+++ b/content/shell/android/java/src/org/chromium/content_shell/ShellManager.java
@@ -53,8 +53,8 @@ public class ShellManager extends FrameLayout {
                     @Override
                     public void onShowCustomView(View view) {
                         super.onShowCustomView(view);
-                        if (CommandLine.getInstance().hasSwitch(
-                                ContentSwitches.ENABLE_OVERLAY_FULLSCREEN_VIDEO_SUBTITLE)) {
+                        if (!CommandLine.getInstance().hasSwitch(
+                                ContentSwitches.DISABLE_OVERLAY_FULLSCREEN_VIDEO_SUBTITLE)) {
                             setOverlayVideoMode(true);
                         }
                     }
@@ -62,8 +62,8 @@ public class ShellManager extends FrameLayout {
                     @Override
                     public void onDestroyContentVideoView() {
                         super.onDestroyContentVideoView();
-                        if (CommandLine.getInstance().hasSwitch(
-                                ContentSwitches.ENABLE_OVERLAY_FULLSCREEN_VIDEO_SUBTITLE)) {
+                        if (!CommandLine.getInstance().hasSwitch(
+                                ContentSwitches.DISABLE_OVERLAY_FULLSCREEN_VIDEO_SUBTITLE)) {
                             setOverlayVideoMode(false);
                         }
                     }