Support resize in Android Viewer App

tools/viewer/sk_app/android/surface_glue_android.cpp

Index: tools/viewer/sk_app/android/surface_glue_android.cpp
diff --git a/tools/viewer/sk_app/android/surface_glue_android.cpp b/tools/viewer/sk_app/android/surface_glue_android.cpp
index 895b0bc4596bad4cd7607dbf7914e3f47c120145..0c1ab0cca24de1c593d9c3be8c04b58f7e3919d4 100644
--- a/tools/viewer/sk_app/android/surface_glue_android.cpp
+++ b/tools/viewer/sk_app/android/surface_glue_android.cpp
@@ -124,6 +124,7 @@ int SkiaAndroidApp::message_callback(int fd, int events, void* data) {
                 skiaAndroidApp->fNativeWindow = message.fNativeWindow;
                 window_android->initDisplay(skiaAndroidApp->fNativeWindow);
             }
+            window_android->onResize(width, height);
             window_android->setContentRect(0, 0, width, height);
             window_android->paintIfNeeded();
             break;