DO NOT COMMIT - DialogSurface initial implementation.

content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java

Index: content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java b/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
index caf965ae8c36f030844bc39ee94d2f180067bc6a..21b8271264cad5a25e6074e3853802379e77eed0 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
@@ -12,6 +12,7 @@ import android.content.pm.PackageManager;
 import android.graphics.SurfaceTexture;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.IBinder;
 import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
 import android.text.TextUtils;
@@ -35,6 +36,7 @@ import org.chromium.content.app.SandboxedProcessService;
 import org.chromium.content.common.ContentSwitches;
 import org.chromium.content.common.IChildProcessCallback;
 import org.chromium.content.common.SurfaceWrapper;
+import org.chromium.media.DialogSurfaceManager;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -837,6 +839,15 @@ public class ChildProcessLauncher {
                     return;
                 }
             }
+
+            @Override
+            public IBinder getDialogSurfaceManager() {
+                if (callbackType != CALLBACK_FOR_GPU_PROCESS) {
+                    Log.e(TAG, "Illegal callback for non-GPU process.");
+                    return null;
+                }
+                return DialogSurfaceManager.instance();
+            }
         };
     }