Removed requirement for the renderer to know it's process ID

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 06aa4dd1a62230a234903d7d2d8f8b2aa1b2a322..34432b7ff1d1ecf1522c2652ac80685fc4c38389 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1498,6 +1498,7 @@ void RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwapped(
   gpu_params.size = params.size;
   gpu_params.scale_factor = params.scale_factor;
   gpu_params.latency_info = params.latency_info;
+  gpu_params.latency_info.FixMissingComponentIds(GetLatencyComponentId());
   view_->AcceleratedSurfaceBuffersSwapped(gpu_params,
                                           params.gpu_process_host_id);
   view_->DidReceiveRendererFrame();
@@ -1513,6 +1514,11 @@ bool RenderWidgetHostImpl::OnSwapCompositorFrame(
   uint32 output_surface_id = param.a;
   param.b.AssignTo(frame.get());
 
+  for (size_t i = 0; i < frame->metadata.latency_info.size(); i++) {
+    frame->metadata.latency_info[i].FixMissingComponentIds(
+        GetLatencyComponentId());
+  }
+
   input_router_->OnViewUpdated(
       GetInputRouterViewFlagsFromCompositorFrameMetadata(frame->metadata));
 
@@ -1677,9 +1683,17 @@ void RenderWidgetHostImpl::DidUpdateBackingStore(
 
   // Now paint the view. Watch out: it might be destroyed already.
   if (view_ && !is_accelerated_compositing_active_) {
+
+    std::vector<ui::LatencyInfo> latency_info;
+    for (size_t i = 0; i < params.latency_info.size(); i++) {
+      ui::LatencyInfo info = params.latency_info[i];
+      info.FixMissingComponentIds(GetLatencyComponentId());
+      latency_info.push_back(info);
+    }
+
     view_being_painted_ = true;
     view_->DidUpdateBackingStore(params.scroll_rect, params.scroll_delta,
-                                 params.copy_rects, params.latency_info);
+                                 params.copy_rects, latency_info);
     view_->DidReceiveRendererFrame();
     view_being_painted_ = false;
   }