aw: Fix FBO restore in webview functor

android_webview/browser/hardware_renderer.h

Index: android_webview/browser/hardware_renderer.h
diff --git a/android_webview/browser/hardware_renderer.h b/android_webview/browser/hardware_renderer.h
index f1f5e6ce8f1efb7710c6ab7f14feaed35492b67e..225c0b197a8a65c096fce9eeaa204bb5eb79dff9 100644
--- a/android_webview/browser/hardware_renderer.h
+++ b/android_webview/browser/hardware_renderer.h
@@ -26,7 +26,6 @@ namespace android_webview {
 
 class ChildFrame;
 class RenderThreadManager;
-class ScopedAppGLStateRestore;
 class SurfacesInstance;
 
 class HardwareRenderer : public cc::SurfaceFactoryClient {
@@ -34,11 +33,9 @@ class HardwareRenderer : public cc::SurfaceFactoryClient {
   explicit HardwareRenderer(RenderThreadManager* state);
   ~HardwareRenderer() override;
 
-  void DrawGL(AwDrawGLInfo* draw_info, const ScopedAppGLStateRestore& gl_state);
+  void DrawGL(AwDrawGLInfo* draw_info);
   void CommitFrame();
 
-  void SetBackingFrameBufferObject(int framebuffer_binding_ext);
-
  private:
   // cc::SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;