Revert of [Android] Use UIResource for overscroll glow

content/browser/android/system_ui_resource_manager_impl_unittest.cc

-// Copyright 2014 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/resources/ui_resource_bitmap.h"
-#include "content/browser/android/system_ui_resource_manager_impl.h"
-#include "content/public/browser/android/ui_resource_client_android.h"
-#include "content/public/browser/android/ui_resource_provider.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-
-namespace content {
-
-class TestSystemUIResourceManagerImpl
-    : public content::SystemUIResourceManagerImpl {
- public:
-  TestSystemUIResourceManagerImpl(content::UIResourceProvider* provider)
-      : SystemUIResourceManagerImpl(provider) {}
-
-  virtual ~TestSystemUIResourceManagerImpl() {}
-
-  virtual void BuildResource(
-      ui::SystemUIResourceManager::ResourceType type) OVERRIDE {}
-
-  void SetResourceAsLoaded(ui::SystemUIResourceManager::ResourceType type) {
-    SkBitmap small_bitmap;
-    SkCanvas canvas(small_bitmap);
-    small_bitmap.allocPixels(
-        SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kOpaque_SkAlphaType));
-    canvas.drawColor(SK_ColorWHITE);
-    small_bitmap.setImmutable();
-    OnFinishedLoadBitmap(type, &small_bitmap);
-  }
-};
-
-namespace {
-
-const ui::SystemUIResourceManager::ResourceType TEST_RESOURCE_TYPE =
-    ui::SystemUIResourceManager::OVERSCROLL_GLOW;
-
-class MockUIResourceProvider : public content::UIResourceProvider {
- public:
-  MockUIResourceProvider()
-      : next_ui_resource_id_(1),
-        has_layer_tree_host_(true),
-        system_ui_resource_manager_(this) {}
-
-  virtual ~MockUIResourceProvider() {}
-
-  virtual cc::UIResourceId CreateUIResource(
-      content::UIResourceClientAndroid* client) OVERRIDE {
-    if (!has_layer_tree_host_)
-      return 0;
-    cc::UIResourceId id = next_ui_resource_id_++;
-    client->GetBitmap(id, false);
-    ui_resource_client_map_[id] = client;
-    return id;
-  }
-
-  virtual void DeleteUIResource(cc::UIResourceId id) OVERRIDE {
-    CHECK(has_layer_tree_host_);
-    ui_resource_client_map_.erase(id);
-  }
-
-  void LayerTreeHostCleared() {
-    has_layer_tree_host_ = false;
-    UIResourceClientMap client_map = ui_resource_client_map_;
-    ui_resource_client_map_.clear();
-    for (UIResourceClientMap::iterator iter = client_map.begin();
-         iter != client_map.end();
-         iter++) {
-      iter->second->UIResourceIsInvalid();
-    }
-  }
-
-  void LayerTreeHostReturned() { has_layer_tree_host_ = true; }
-
-  TestSystemUIResourceManagerImpl& GetSystemUIResourceManager() {
-    return system_ui_resource_manager_;
-  }
-
-  cc::UIResourceId next_ui_resource_id() const { return next_ui_resource_id_; }
-
- private:
-  typedef base::hash_map<cc::UIResourceId, content::UIResourceClientAndroid*>
-      UIResourceClientMap;
-
-  cc::UIResourceId next_ui_resource_id_;
-  UIResourceClientMap ui_resource_client_map_;
-  bool has_layer_tree_host_;
-
-  // The UIResourceProvider owns the SystemUIResourceManager.
-  TestSystemUIResourceManagerImpl system_ui_resource_manager_;
-};
-
-}  // namespace
-
-class SystemUIResourceManagerImplTest : public testing::Test {
- public:
-  void PreloadResource(ui::SystemUIResourceManager::ResourceType type) {
-    ui_resource_provider_.GetSystemUIResourceManager().PreloadResource(type);
-  }
-
-  cc::UIResourceId GetUIResourceId(
-      ui::SystemUIResourceManager::ResourceType type) {
-    return ui_resource_provider_.GetSystemUIResourceManager().GetUIResourceId(
-        type);
-  }
-
-  void LayerTreeHostCleared() { ui_resource_provider_.LayerTreeHostCleared(); }
-
-  void LayerTreeHostReturned() {
-    ui_resource_provider_.LayerTreeHostReturned();
-  }
-
-  void SetResourceAsLoaded(ui::SystemUIResourceManager::ResourceType type) {
-    ui_resource_provider_.GetSystemUIResourceManager().SetResourceAsLoaded(
-        type);
-  }
-
-  cc::UIResourceId GetNextUIResourceId() const {
-    return ui_resource_provider_.next_ui_resource_id();
-  }
-
- private:
-  MockUIResourceProvider ui_resource_provider_;
-};
-
-TEST_F(SystemUIResourceManagerImplTest, GetResourceAfterBitmapLoaded) {
-  SetResourceAsLoaded(TEST_RESOURCE_TYPE);
-  EXPECT_NE(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-}
-
-TEST_F(SystemUIResourceManagerImplTest, GetResourceBeforeLoadBitmap) {
-  EXPECT_EQ(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  SetResourceAsLoaded(TEST_RESOURCE_TYPE);
-  EXPECT_NE(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-}
-
-TEST_F(SystemUIResourceManagerImplTest, PreloadEnsureResource) {
-  // Preloading the resource should trigger bitmap loading, but the actual
-  // resource id will not be generated until it is explicitly requested.
-  cc::UIResourceId first_resource_id = GetNextUIResourceId();
-  PreloadResource(TEST_RESOURCE_TYPE);
-  SetResourceAsLoaded(TEST_RESOURCE_TYPE);
-  EXPECT_EQ(first_resource_id, GetNextUIResourceId());
-  EXPECT_NE(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  EXPECT_NE(first_resource_id, GetNextUIResourceId());
-}
-
-TEST_F(SystemUIResourceManagerImplTest, ResetLayerTreeHost) {
-  EXPECT_EQ(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  LayerTreeHostCleared();
-  EXPECT_EQ(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  LayerTreeHostReturned();
-  EXPECT_EQ(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-
-  SetResourceAsLoaded(TEST_RESOURCE_TYPE);
-  EXPECT_NE(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  LayerTreeHostCleared();
-  EXPECT_EQ(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-  LayerTreeHostReturned();
-  EXPECT_NE(0, GetUIResourceId(TEST_RESOURCE_TYPE));
-}
-
-}  // namespace content