Split image decode cache limits into "working set" vs "cache" limits

cc/raster/raster_source_unittest.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/raster/raster_source.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 565 matching lines @@
       gfx::Rect(size.width() - 4, size.height() - 4, 4, 4), flags);
 
   recording_source->SetGenerateDiscardableImagesMetadata(true);
   recording_source->Rerecord();
 
   bool can_use_lcd = true;
   scoped_refptr<RasterSource> raster_source =
       recording_source->CreateRasterSource(can_use_lcd);
   SoftwareImageDecodeCache controller(
       ResourceFormat::RGBA_8888,
-      LayerTreeSettings().software_decoded_image_budget_bytes);
+      LayerTreeSettings().decoded_image_working_set_budget_bytes);
   raster_source->set_image_decode_cache(&controller);
 
   SkBitmap bitmap;
   bitmap.allocN32Pixels(size.width() * 0.5f, size.height() * 0.25f);
   SkCanvas canvas(bitmap);
   canvas.scale(0.5f, 0.25f);
 
   RasterSource::PlaybackSettings settings;
   settings.playback_to_shared_canvas = true;
   settings.use_image_hijack_canvas = true;
   raster_source->PlaybackToCanvas(&canvas, ColorSpaceForTesting(),
                                   gfx::Rect(size), gfx::Rect(size), 1.f,
                                   settings);
 
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(0, 0));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(49, 0));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(0, 24));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(49, 24));
   for (int x = 0; x < 49; ++x)
     EXPECT_EQ(SK_ColorRED, bitmap.getColor(x, 12));
   for (int y = 0; y < 24; ++y)
     EXPECT_EQ(SK_ColorRED, bitmap.getColor(24, y));
 }
 
 }  // namespace
 }  // namespace cc