A better HW Bitmap uploader

Move all HW bitmap upload operations off of RenderThread.
Ensure EGL context outlives all upload requests

Bug: 79250950
Test: builds, boots, systrace is good, CTS bitmap tests pass

Change-Id: I5ace6c516d33b1afdf1a407cd8b183f6b60c22c1
diff --git a/libs/hwui/HardwareBitmapUploader.h b/libs/hwui/HardwareBitmapUploader.h
new file mode 100644
index 0000000..c0113d8
--- /dev/null
+++ b/libs/hwui/HardwareBitmapUploader.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <hwui/Bitmap.h>
+
+namespace android::uirenderer {
+
+class HardwareBitmapUploader {
+public:
+    static sk_sp<Bitmap> allocateHardwareBitmap(const SkBitmap& sourceBitmap);
+};
+
+};  // namespace android::uirenderer