cc: Remove the opaque rect return-parameter from ContentLayerClient.

cc/layers/content_layer_unittest.cc

-// Copyright 2012 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/layers/content_layer.h"
-
-#include "cc/layers/content_layer_client.h"
-#include "cc/resources/bitmap_content_layer_updater.h"
-#include "cc/test/fake_rendering_stats_instrumentation.h"
-#include "cc/test/geometry_test_utils.h"
-#include "skia/ext/platform_canvas.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/rect_conversions.h"
-
-namespace cc {
-namespace {
-
-class MockContentLayerClient : public ContentLayerClient {
- public:
-  explicit MockContentLayerClient(const gfx::Rect& opaque_layer_rect)
-      : opaque_layer_rect_(opaque_layer_rect) {}
-
-  virtual void PaintContents(
-      SkCanvas* canvas,
-      const gfx::Rect& clip,
-      gfx::RectF* opaque,
-      ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE {
-    *opaque = gfx::RectF(opaque_layer_rect_);
-  }
-  virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
-  virtual bool FillsBoundsCompletely() const OVERRIDE { return false; }
-
- private:
-  gfx::Rect opaque_layer_rect_;
-};
-
-TEST(ContentLayerTest, ContentLayerPainterWithDeviceScale) {
-  float contents_scale = 2.f;
-  gfx::Rect content_rect(10, 10, 100, 100);
-  gfx::Rect opaque_rect_in_layer_space(5, 5, 20, 20);
-  gfx::Rect opaque_rect_in_content_space = gfx::ScaleToEnclosingRect(
-      opaque_rect_in_layer_space, contents_scale, contents_scale);
-  MockContentLayerClient client(opaque_rect_in_layer_space);
-  FakeRenderingStatsInstrumentation stats_instrumentation;
-  scoped_refptr<BitmapContentLayerUpdater> updater =
-      BitmapContentLayerUpdater::Create(
-          ContentLayerPainter::Create(&client).PassAs<LayerPainter>(),
-          &stats_instrumentation,
-          0);
-
-  gfx::Rect resulting_opaque_rect;
-  updater->PrepareToUpdate(content_rect,
-                           gfx::Size(256, 256),
-                           contents_scale,
-                           contents_scale,
-                           &resulting_opaque_rect);
-
-  EXPECT_EQ(opaque_rect_in_content_space.ToString(),
-            resulting_opaque_rect.ToString());
-}
-
-}  // namespace
-}  // namespace cc