BASELINE: Update Chromium to 71.0.3578.93

Change-Id: I6a32086c33670e1b033f8b10e6bf1fd4da1d105d
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 40 insertions, 0 deletions

diff --git a/chromium/cc/mojo_embedder/async_layer_tree_frame_sink.h b/chromium/cc/mojo_embedder/async_layer_tree_frame_sink.h
index 28bbfdf7252..71be58d39f3 100644
--- a/chromium/cc/mojo_embedder/async_layer_tree_frame_sink.h
+++ b/chromium/cc/mojo_embedder/async_layer_tree_frame_sink.h
@@ -21,6 +21,10 @@
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/viz/public/interfaces/compositing/compositor_frame_sink.mojom.h"
 
+namespace base {
+class HistogramBase;
+}  // namespace base
+
 namespace viz {
 class HitTestDataProvider;
 class LocalSurfaceIdProvider;
@@ -37,6 +41,32 @@ class CC_MOJO_EMBEDDER_EXPORT AsyncLayerTreeFrameSink
       public viz::mojom::CompositorFrameSinkClient,
       public viz::ExternalBeginFrameSourceClient {
  public:
+  // This class is used to handle the graphics pipeline related metrics
+  // reporting.
+  class PipelineReporting {
+   public:
+    PipelineReporting(viz::BeginFrameArgs args,
+                      base::TimeTicks now,
+                      base::HistogramBase* submit_begin_frame_histogram);
+    ~PipelineReporting();
+
+    void Report();
+
+    int64_t trace_id() const { return trace_id_; }
+
+   private:
+    // The trace id of a BeginFrame which is used to track its progress on the
+    // client side.
+    int64_t trace_id_;
+
+    // The time stamp for the begin frame to arrive on client side.
+    base::TimeTicks frame_time_;
+
+    // Histogram metrics used to record
+    // GraphicsPipeline.ClientName.SubmitCompositorFrameAfterBeginFrame
+    base::HistogramBase* submit_begin_frame_histogram_;
+  };
+
   struct CC_MOJO_EMBEDDER_EXPORT UnboundMessagePipes {
     UnboundMessagePipes();
     ~UnboundMessagePipes();
@@ -65,6 +95,7 @@ class CC_MOJO_EMBEDDER_EXPORT AsyncLayerTreeFrameSink
     UnboundMessagePipes pipes;
     bool enable_surface_synchronization = false;
     bool wants_animate_only_begin_frames = false;
+    const char* client_name = nullptr;
   };
 
   AsyncLayerTreeFrameSink(
@@ -137,7 +168,16 @@ class CC_MOJO_EMBEDDER_EXPORT AsyncLayerTreeFrameSink
   viz::LocalSurfaceId last_submitted_local_surface_id_;
   float last_submitted_device_scale_factor_ = 1.f;
   gfx::Size last_submitted_size_in_pixels_;
+  // Use this map to record the time when client received the BeginFrameArgs.
+  base::flat_map<int64_t, PipelineReporting> pipeline_reporting_frame_times_;
+
+  // Histogram metrics used to record
+  // GraphicsPipeline.ClientName.ReceivedBeginFrame
+  base::HistogramBase* const receive_begin_frame_histogram_;
 
+  // Histogram metrics used to record
+  // GraphicsPipeline.ClientName.SubmitCompositorFrameAfterBeginFrame
+  base::HistogramBase* const submit_begin_frame_histogram_;
   base::WeakPtrFactory<AsyncLayerTreeFrameSink> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AsyncLayerTreeFrameSink);