Update from https://crrev.com/316786

cc/test/fake_picture_pile_impl.cc

 // Copyright 2013 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.
 
 #include "cc/test/fake_picture_pile_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <utility>
 
 #include "base/synchronization/waitable_event.h"
 #include "cc/resources/picture_pile.h"
-#include "cc/test/fake_picture_pile.h"
 #include "cc/test/impl_side_painting_settings.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 
 FakePicturePileImpl::FakePicturePileImpl() : playback_allowed_event_(nullptr) {
 }
 
 FakePicturePileImpl::FakePicturePileImpl(
     const PicturePile* other,
     base::WaitableEvent* playback_allowed_event)
     : PicturePileImpl(other),
       playback_allowed_event_(playback_allowed_event),
       tile_grid_size_(other->GetTileGridSizeForTesting()) {
 }
 
 FakePicturePileImpl::~FakePicturePileImpl() {}
 
-scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateFilledPile(
+scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreatePile(
     const gfx::Size& tile_size,
-    const gfx::Size& layer_bounds) {
+    const gfx::Size& layer_bounds,
+    bool is_filled) {
   FakePicturePile pile(ImplSidePaintingSettings().minimum_contents_scale,
                        ImplSidePaintingSettings().default_tile_grid_size);
   pile.tiling().SetBorderTexels(0);
   pile.tiling().SetTilingSize(layer_bounds);
   pile.tiling().SetMaxTextureSize(tile_size);
-  pile.SetRecordedViewport(gfx::Rect(layer_bounds));
-  pile.SetHasAnyRecordings(true);
-
+  pile.SetRecordedViewport(is_filled ? gfx::Rect(layer_bounds) : gfx::Rect());
+  pile.SetHasAnyRecordings(is_filled);
+  if (is_filled) {
+    for (int x = 0; x < pile.tiling().num_tiles_x(); ++x) {
+      for (int y = 0; y < pile.tiling().num_tiles_y(); ++y)
+        pile.AddRecordingAt(x, y);
+    }
+  }
   scoped_refptr<FakePicturePileImpl> pile_impl(
       new FakePicturePileImpl(&pile, nullptr));
-  for (int x = 0; x < pile_impl->tiling().num_tiles_x(); ++x) {
-    for (int y = 0; y < pile_impl->tiling().num_tiles_y(); ++y)
-      pile_impl->AddRecordingAt(x, y);
-  }
   return pile_impl;
 }
 
+scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateFilledPile(
+    const gfx::Size& tile_size,
+    const gfx::Size& layer_bounds) {
+  bool is_filled = true;
+  return CreatePile(tile_size, layer_bounds, is_filled);
+}
+
 scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateEmptyPile(
     const gfx::Size& tile_size,
     const gfx::Size& layer_bounds) {
-  FakePicturePile pile(ImplSidePaintingSettings().minimum_contents_scale,
-                       ImplSidePaintingSettings().default_tile_grid_size);
-  pile.tiling().SetBorderTexels(0);
-  pile.tiling().SetTilingSize(layer_bounds);
-  pile.tiling().SetMaxTextureSize(tile_size);
-  pile.SetRecordedViewport(gfx::Rect());
-  pile.SetHasAnyRecordings(false);
-  return make_scoped_refptr(new FakePicturePileImpl(&pile, nullptr));
+  bool is_filled = false;
+  return CreatePile(tile_size, layer_bounds, is_filled);
 }
 
 scoped_refptr<FakePicturePileImpl>
 FakePicturePileImpl::CreateEmptyPileThatThinksItHasRecordings(
     const gfx::Size& tile_size,
-    const gfx::Size& layer_bounds) {
+    const gfx::Size& layer_bounds,
+    bool is_solid_color) {
   FakePicturePile pile(ImplSidePaintingSettings().minimum_contents_scale,
                        ImplSidePaintingSettings().default_tile_grid_size);
   pile.tiling().SetBorderTexels(0);
   pile.tiling().SetTilingSize(layer_bounds);
   pile.tiling().SetMaxTextureSize(tile_size);
   // This simulates a false positive for this flag.
   pile.SetRecordedViewport(gfx::Rect());
   pile.SetHasAnyRecordings(true);
+  pile.SetIsSolidColor(is_solid_color);
   return make_scoped_refptr(new FakePicturePileImpl(&pile, nullptr));
 }
 
 scoped_refptr<FakePicturePileImpl>
 FakePicturePileImpl::CreateInfiniteFilledPile() {
   gfx::Size size(std::numeric_limits<int>::max(),
                  std::numeric_limits<int>::max());
   FakePicturePile pile(ImplSidePaintingSettings().minimum_contents_scale, size);
   pile.tiling().SetBorderTexels(0);
   pile.tiling().SetTilingSize(size);
   pile.tiling().SetMaxTextureSize(size);
   pile.SetRecordedViewport(gfx::Rect(size));
   pile.SetHasAnyRecordings(true);
-
+  pile.AddRecordingAt(0, 0);
   scoped_refptr<FakePicturePileImpl> pile_impl(
       new FakePicturePileImpl(&pile, nullptr));
-  pile_impl->AddRecordingAt(0, 0);
   return pile_impl;
 }
 
 scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateFromPile(
     const PicturePile* other,
     base::WaitableEvent* playback_allowed_event) {
   return make_scoped_refptr(
       new FakePicturePileImpl(other, playback_allowed_event));
 }
 
 void FakePicturePileImpl::PlaybackToCanvas(SkCanvas* canvas,
                                            const gfx::Rect& canvas_rect,
                                            float contents_scale) const {
   if (playback_allowed_event_)
     playback_allowed_event_->Wait();
   PicturePileImpl::PlaybackToCanvas(canvas, canvas_rect, contents_scale);
 }
 
-void FakePicturePileImpl::AddRecordingAt(int x, int y) {
-  EXPECT_GE(x, 0);
-  EXPECT_GE(y, 0);
-  EXPECT_LT(x, tiling_.num_tiles_x());
-  EXPECT_LT(y, tiling_.num_tiles_y());
-
-  if (HasRecordingAt(x, y))
-    return;
-  gfx::Rect bounds(tiling().TileBounds(x, y));
-  bounds.Inset(-buffer_pixels(), -buffer_pixels());
-
-  scoped_refptr<Picture> picture(
-      Picture::Create(bounds, &client_, tile_grid_size_, true,
-                      RecordingSource::RECORD_NORMALLY));
-  picture_map_[std::pair<int, int>(x, y)].SetPicture(picture);
-  EXPECT_TRUE(HasRecordingAt(x, y));
-
-  has_any_recordings_ = true;
-}
-
-void FakePicturePileImpl::RemoveRecordingAt(int x, int y) {
-  EXPECT_GE(x, 0);
-  EXPECT_GE(y, 0);
-  EXPECT_LT(x, tiling_.num_tiles_x());
-  EXPECT_LT(y, tiling_.num_tiles_y());
-
-  if (!HasRecordingAt(x, y))
-    return;
-  picture_map_.erase(std::pair<int, int>(x, y));
-  EXPECT_FALSE(HasRecordingAt(x, y));
-}
-
 bool FakePicturePileImpl::HasRecordingAt(int x, int y) const {
   PictureMap::const_iterator found = picture_map_.find(PictureMapKey(x, y));
   if (found == picture_map_.end())
     return false;
   return !!found->second.GetPicture();
 }
 
-void FakePicturePileImpl::RerecordPile() {
-  for (int y = 0; y < num_tiles_y(); ++y) {
-    for (int x = 0; x < num_tiles_x(); ++x) {
-      RemoveRecordingAt(x, y);
-      AddRecordingAt(x, y);
-    }
-  }
-}
-
-void FakePicturePileImpl::SetMinContentsScale(float min_contents_scale) {
-  if (min_contents_scale_ == min_contents_scale)
-    return;
-
-  // Picture contents are played back scaled. When the final contents scale is
-  // less than 1 (i.e. low res), then multiple recorded pixels will be used
-  // to raster one final pixel.  To avoid splitting a final pixel across
-  // pictures (which would result in incorrect rasterization due to blending), a
-  // buffer margin is added so that any picture can be snapped to integral
-  // final pixels.
-  //
-  // For example, if a 1/4 contents scale is used, then that would be 3 buffer
-  // pixels, since that's the minimum number of pixels to add so that resulting
-  // content can be snapped to a four pixel aligned grid.
-  int buffer_pixels = static_cast<int>(ceil(1 / min_contents_scale) - 1);
-  buffer_pixels = std::max(0, buffer_pixels);
-  SetBufferPixels(buffer_pixels);
-  min_contents_scale_ = min_contents_scale;
-}
-
-void FakePicturePileImpl::SetBufferPixels(int new_buffer_pixels) {
-  if (new_buffer_pixels == buffer_pixels())
-    return;
-
-  Clear();
-  tiling_.SetBorderTexels(new_buffer_pixels);
-}
-
-void FakePicturePileImpl::Clear() {
-  picture_map_.clear();
-  recorded_viewport_ = gfx::Rect();
-}
-
 }  // namespace cc