Use SwapBuffersWithBounds on Chromecast

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index f9cc3d71c3a232ca1d4b6aef52354891ed7e18c8..6f3f8a611617db6e7b2ce90c410d02547c153a20 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -401,6 +401,7 @@ GLRenderer::GLRenderer(const RendererSettings* settings,
   use_blend_equation_advanced_coherent_ =
       context_caps.blend_equation_advanced_coherent;
   use_occlusion_query_ = context_caps.occlusion_query;
+  use_swap_with_bounds_ = context_caps.swap_buffers_with_bounds;
 
   InitializeSharedObjects();
 }
@@ -2653,6 +2654,10 @@ void GLRenderer::SwapBuffers(std::vector<ui::LatencyInfo> latency_info) {
     output_frame.sub_buffer_rect = swap_buffer_rect_;
   }
 
+  if (use_swap_with_bounds_) {
+    overlay_processor_->GetContentBounds(&output_frame.content_bounds);
+  }
+
   swapping_overlay_resources_.push_back(std::move(pending_overlay_resources_));
   pending_overlay_resources_.clear();