BASELINE: Update Chromium to 77.0.3865.59

Change-Id: I1e89a5f3b009a9519a6705102ad65c92fe736f21
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 50 insertions, 0 deletions

diff --git a/chromium/cc/layers/tile_size_calculator.h b/chromium/cc/layers/tile_size_calculator.h
new file mode 100644
index 00000000000..cd455b922d2
--- /dev/null
+++ b/chromium/cc/layers/tile_size_calculator.h
@@ -0,0 +1,50 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CC_LAYERS_TILE_SIZE_CALCULATOR_H_
+#define CC_LAYERS_TILE_SIZE_CALCULATOR_H_
+
+#include "cc/cc_export.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace cc {
+
+class PictureLayerImpl;
+
+// This class calculates the tile size only when the |affecting_params_|
+// or |content_bounds_| is changed.
+class CC_EXPORT TileSizeCalculator {
+ public:
+  explicit TileSizeCalculator(PictureLayerImpl* layer_impl);
+
+  gfx::Size CalculateTileSize();
+
+ private:
+  struct AffectingParams {
+    int max_texture_size = 0;
+    bool use_gpu_rasterization = false;
+    float device_scale_factor = 0.0f;
+    gfx::Size max_tile_size;
+    gfx::Size gpu_raster_max_texture_size;
+    gfx::Size max_untiled_layer_size;
+    gfx::Size default_tile_size;
+    gfx::Size layer_content_bounds;
+
+    bool operator==(const AffectingParams& other);
+  };
+
+  PictureLayerImpl* layer_impl() const { return layer_impl_; }
+  AffectingParams GetAffectingParams();
+  bool IsAffectingParamsChanged();
+
+  PictureLayerImpl* layer_impl_;
+
+  AffectingParams affecting_params_;
+
+  gfx::Size tile_size_;
+};
+
+}  // namespace cc
+
+#endif  // CC_LAYERS_TILE_SIZE_CALCULATOR_H_