stash changes

engine/Build.bee.cs

             "src/shell/platform/unity/android/uiwidgets_system.cc",
             "src/shell/platform/unity/android/android_task_runner.cc",
             "src/shell/platform/unity/android/uiwidgets_panel.cc",
+            "src/shell/platform/unity/android/unity_external_texture_gl.cc"
         };
 
         var iosSources = new NPath[] {

engine/src/shell/platform/unity/android/uiwidgets_panel.cc

 #include "shell/common/switches.h"
 #include "shell/platform/embedder/embedder_engine.h"
 #include "uiwidgets_system.h"
+#include "unity_external_texture_gl.h"
 #include "third_party/Unity/IUnityGraphics.h"
 
 namespace uiwidgets
 
     engine->GetShell().GetPlatformView()->RegisterTexture(
          std::make_unique<UnityExternalTextureGL>(
-             texture_identifier, native_texture_ptr, surface_manager_.get()));
+             texture_identifier));
     
     return texture_identifier;
   }

engine/src/shell/platform/unity/android/unity_external_texture_gl.cc

 #include "unity_external_texture_gl.h"
 
 #include <EGL/egl.h>
-#include <EGL/eglext.h>
-#include <EGL/eglext_angle.h>
-#include <GLES2/gl2ext.h>
 
 #include "flutter/fml/logging.h"
 #include "include/gpu/GrBackendSurface.h"
 namespace uiwidgets {
 
 UnityExternalTextureGL::UnityExternalTextureGL(
-    int64_t texture_identifier, void* native_texture_ptr,
-    UnitySurfaceManager* unity_surface_manager)
-    : Texture(texture_identifier),
-      unity_surface_manager_(unity_surface_manager) {
+    int64_t texture_identifier)
+    : Texture(texture_identifier){
   auto* graphics = UIWidgetsSystem::GetInstancePtr()
                        ->GetUnityInterfaces()
                        ->Get<IUnityGraphics>();
     glDeleteTextures(1, &gl_texture_);
     gl_texture_ = 0;
   }
-
-  eglDestroyImageKHR(unity_surface_manager_->GetEGLDisplay(), egl_image_);
-  d3d11_texture_->Release();
 }
 
 // |flutter::Texture|

engine/src/shell/platform/unity/android/unity_external_texture_gl.h

 
 class UnityExternalTextureGL : public Texture {
  public:
-  UnityExternalTextureGL(int64_t texture_identifier, void* native_texture_ptr,
-                         UnitySurfaceManager* unity_surface_manager);
+  UnityExternalTextureGL(int64_t texture_identifier);
-  UnitySurfaceManager* unity_surface_manager_;
-  bool gr_context_created_ = false;
-
   GLuint gl_texture_;
   sk_sp<SkImage> last_image_;