Mandoline: Support transforms and clipping of OOPIFs and events

components/mus/surfaces/top_level_display_client.cc

Index: components/mus/surfaces/top_level_display_client.cc
diff --git a/components/mus/surfaces/top_level_display_client.cc b/components/mus/surfaces/top_level_display_client.cc
index c6eeea7c5ada25e2f07327184a8e292f2bfa409c..6a492e696f02d8c198ffb50e27abdc9789e8ea6d 100644
--- a/components/mus/surfaces/top_level_display_client.cc
+++ b/components/mus/surfaces/top_level_display_client.cc
@@ -6,6 +6,7 @@
 
 #include "cc/output/compositor_frame.h"
 #include "cc/surfaces/display.h"
+#include "cc/surfaces/surface.h"
 #include "components/mus/gles2/gpu_state.h"
 #include "components/mus/surfaces/surfaces_context_provider.h"
 #include "components/mus/surfaces/surfaces_output_surface.h"
@@ -49,13 +50,11 @@ TopLevelDisplayClient::TopLevelDisplayClient(
 void TopLevelDisplayClient::OnContextCreated() {}
 
 TopLevelDisplayClient::~TopLevelDisplayClient() {
-  if (display_) {
-    factory_.Destroy(cc_id_);
-    surfaces_state_->scheduler()->RemoveDisplay(display_.get());
-    // By deleting the object after display_ is reset, OutputSurfaceLost can
-    // know not to do anything (which would result in double delete).
-    delete display_.release();
-  }
+  factory_.Destroy(cc_id_);
+  surfaces_state_->scheduler()->RemoveDisplay(display_.get());
+  // By deleting the object after display_ is reset, OutputSurfaceLost can
+  // know not to do anything (which would result in double delete).
+  delete display_.release();
 }
 
 void TopLevelDisplayClient::SubmitCompositorFrame(
@@ -72,6 +71,14 @@ void TopLevelDisplayClient::SubmitCompositorFrame(
   surfaces_state_->scheduler()->SetNeedsDraw();
 }
 
+const cc::CompositorFrame*
+TopLevelDisplayClient::GetLastCompositorFrame() const {
+  cc::Surface* surface = factory_.manager()->GetSurfaceForId(cc_id_);
+  if (!surface)
+    return nullptr;
+  return surface->GetEligibleFrame();
+}
+
 void TopLevelDisplayClient::CommitVSyncParameters(base::TimeTicks timebase,
                                                   base::TimeDelta interval) {}