Fix broken VR transitions due to ChromeTabbedActivity not being exported.

chrome/browser/android/vr_shell/vr_shell_delegate.cc

Index: chrome/browser/android/vr_shell/vr_shell_delegate.cc
diff --git a/chrome/browser/android/vr_shell/vr_shell_delegate.cc b/chrome/browser/android/vr_shell/vr_shell_delegate.cc
index 04afe1c512bfee1c83ee5d2d9235c04a5978e9cf..ae4acc523ce7317b1e0c39f8bad9a523af61170c 100644
--- a/chrome/browser/android/vr_shell/vr_shell_delegate.cc
+++ b/chrome/browser/android/vr_shell/vr_shell_delegate.cc
@@ -75,9 +75,9 @@ bool VrShellDelegate::RequestWebVRPresent(
 
   // If/When VRShell is ready for use it will call OnVrShellReady.
   JNIEnv* env = AttachCurrentThread();
-  return Java_VrShellDelegate_enterVRIfNecessary(env,
-                                                 j_vr_shell_delegate_.obj(),
-                                                 true);
+  Java_VrShellDelegate_enterVRIfNecessary(env, j_vr_shell_delegate_.obj(),
+                                          true);
+  return true;
 }
 
 void VrShellDelegate::ExitWebVRPresent() {