Remove some platform specific stuff from views.

ui/app_list/pagination_model_unittest.cc

Index: ui/app_list/pagination_model_unittest.cc
diff --git a/ui/app_list/pagination_model_unittest.cc b/ui/app_list/pagination_model_unittest.cc
deleted file mode 100644
index 3c9b5a45480ba04c780bb8dad6c4e2076a2fb4c2..0000000000000000000000000000000000000000
--- a/ui/app_list/pagination_model_unittest.cc
+++ /dev/null
@@ -1,432 +0,0 @@
-// Copyright (c) 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 "ui/app_list/pagination_model.h"
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/stringprintf.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/app_list/pagination_model_observer.h"
-
-namespace app_list {
-namespace test {
-
-class TestPaginationModelObserver : public PaginationModelObserver {
- public:
-  TestPaginationModelObserver()
-      : model_(NULL),
-        expected_page_selection_(0),
-        expected_transition_start_(0),
-        expected_transition_end_(0),
-        transition_page_(-1) {
-    Reset();
-  }
-  ~TestPaginationModelObserver() override {}
-
-  void Reset() {
-    selection_count_ = 0;
-    transition_start_count_ = 0;
-    transition_end_count_ = 0;
-    selected_pages_.clear();
-  }
-
-  void set_model(PaginationModel* model) { model_ = model; }
-
-  void set_expected_page_selection(int expected_page_selection) {
-    expected_page_selection_ = expected_page_selection;
-  }
-  void set_expected_transition_start(int expected_transition_start) {
-    expected_transition_start_ = expected_transition_start;
-  }
-  void set_expected_transition_end(int expected_transition_end) {
-    expected_transition_end_ = expected_transition_end;
-  }
-  void set_transition_page(int page) { transition_page_ = page; }
-
-  const std::string& selected_pages() const { return selected_pages_; }
-  int selection_count() const { return selection_count_; }
-  int transition_start_count() const { return transition_start_count_; }
-  int transition_end_count() const { return transition_end_count_; }
-
- private:
-  void AppendSelectedPage(int page) {
-    if (selected_pages_.length())
-      selected_pages_.append(std::string(" "));
-    selected_pages_.append(base::StringPrintf("%d", page));
-  }
-
-  // PaginationModelObserver overrides:
-  void TotalPagesChanged() override {}
-  void SelectedPageChanged(int old_selected, int new_selected) override {
-    AppendSelectedPage(new_selected);
-    ++selection_count_;
-    if (expected_page_selection_ &&
-        selection_count_ == expected_page_selection_) {
-      base::MessageLoop::current()->Quit();
-    }
-  }
-
-  void TransitionStarted() override {}
-
-  void TransitionChanged() override {
-    if (transition_page_ == -1 ||
-        model_->transition().target_page == transition_page_) {
-      if (model_->transition().progress == 0)
-        ++transition_start_count_;
-      if (model_->transition().progress == 1)
-        ++transition_end_count_;
-    }
-
-    if ((expected_transition_start_ &&
-         transition_start_count_ == expected_transition_start_) ||
-        (expected_transition_end_ &&
-         transition_end_count_ == expected_transition_end_)) {
-      base::MessageLoop::current()->Quit();
-    }
-  }
-
-  PaginationModel* model_;
-
-  int expected_page_selection_;
-  int expected_transition_start_;
-  int expected_transition_end_;
-
-  int selection_count_;
-  int transition_start_count_;
-  int transition_end_count_;
-
-  // Indicate which page index should be counted for |transition_start_count_|
-  // and |transition_end_count_|. -1 means all the pages should be counted.
-  int transition_page_;
-
-  std::string selected_pages_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestPaginationModelObserver);
-};
-
-class PaginationModelTest : public testing::Test {
- public:
-  PaginationModelTest() {}
-  virtual ~PaginationModelTest() {}
-
-  // testing::Test overrides:
-  virtual void SetUp() override {
-    pagination_.SetTotalPages(5);
-    pagination_.SetTransitionDurations(1, 1);
-    observer_.set_model(&pagination_);
-    pagination_.AddObserver(&observer_);
-  }
-  virtual void TearDown() override {
-    pagination_.RemoveObserver(&observer_);
-    observer_.set_model(NULL);
-  }
-
- protected:
-  void SetStartPageAndExpects(int start_page,
-                              int expected_selection,
-                              int expected_transition_start,
-                              int expected_transition_end) {
-    observer_.set_expected_page_selection(0);
-    pagination_.SelectPage(start_page, false /* animate */);
-    observer_.Reset();
-    observer_.set_expected_page_selection(expected_selection);
-    observer_.set_expected_transition_start(expected_transition_start);
-    observer_.set_expected_transition_end(expected_transition_end);
-  }
-
-  PaginationModel pagination_;
-  TestPaginationModelObserver observer_;
-
- private:
-  base::MessageLoopForUI message_loop_;
-
-  DISALLOW_COPY_AND_ASSIGN(PaginationModelTest);
-};
-
-TEST_F(PaginationModelTest, SelectPage) {
-  pagination_.SelectPage(2, false /* animate */);
-  pagination_.SelectPage(4, false /* animate */);
-  pagination_.SelectPage(3, false /* animate */);
-  pagination_.SelectPage(1, false /* animate */);
-
-  EXPECT_EQ(0, observer_.transition_start_count());
-  EXPECT_EQ(0, observer_.transition_end_count());
-  EXPECT_EQ(4, observer_.selection_count());
-  EXPECT_EQ(std::string("2 4 3 1"), observer_.selected_pages());
-
-  // Nothing happens if select the same page.
-  pagination_.SelectPage(1, false /* animate */);
-  EXPECT_EQ(4, observer_.selection_count());
-  EXPECT_EQ(std::string("2 4 3 1"), observer_.selected_pages());
-}
-
-TEST_F(PaginationModelTest, SelectPageAnimated) {
-  const int kStartPage = 0;
-
-  // One transition.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SelectPage(1, true /* animate */);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.transition_start_count());
-  EXPECT_EQ(1, observer_.transition_end_count());
-  EXPECT_EQ(1, observer_.selection_count());
-  EXPECT_EQ(std::string("1"), observer_.selected_pages());
-
-  // Two transitions in a row.
-  SetStartPageAndExpects(kStartPage, 2, 0, 0);
-  pagination_.SelectPage(1, true /* animate */);
-  pagination_.SelectPage(3, true /* animate */);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(2, observer_.transition_start_count());
-  EXPECT_EQ(2, observer_.transition_end_count());
-  EXPECT_EQ(2, observer_.selection_count());
-  EXPECT_EQ(std::string("1 3"), observer_.selected_pages());
-
-  // Transition to same page twice and only one should happen.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SelectPage(1, true /* animate */);
-  pagination_.SelectPage(1, true /* animate */);  // Ignored.
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.transition_start_count());
-  EXPECT_EQ(1, observer_.transition_end_count());
-  EXPECT_EQ(1, observer_.selection_count());
-  EXPECT_EQ(std::string("1"), observer_.selected_pages());
-
-  // More than two transitions and only the first and last would happen.
-  SetStartPageAndExpects(kStartPage, 2, 0, 0);
-  pagination_.SelectPage(1, true /* animate */);
-  pagination_.SelectPage(3, true /* animate */);  // Ignored
-  pagination_.SelectPage(4, true /* animate */);  // Ignored
-  pagination_.SelectPage(2, true /* animate */);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(2, observer_.transition_start_count());
-  EXPECT_EQ(2, observer_.transition_end_count());
-  EXPECT_EQ(2, observer_.selection_count());
-  EXPECT_EQ(std::string("1 2"), observer_.selected_pages());
-
-  // Multiple transitions with one transition that goes back to the original
-  // and followed by a new transition. Two transitions would happen. The first
-  // one will be reversed by the kStart transition and the second one will be
-  // finished.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SelectPage(1, true /* animate */);
-  pagination_.SelectPage(2, true /* animate */);  // Ignored
-  pagination_.SelectPage(kStartPage, true /* animate */);
-  pagination_.SelectPage(3, true /* animate */);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(std::string("3"), observer_.selected_pages());
-}
-
-TEST_F(PaginationModelTest, SimpleScroll) {
-  const int kStartPage = 2;
-
-  // Scroll to the next page (negative delta) and finish it.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  pagination_.EndScroll(false);  // Finish transition
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-
-  // Scroll to the previous page (positive delta) and finish it.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  pagination_.EndScroll(false);  // Finish transition
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-
-  // Scroll to the next page (negative delta) and cancel it.
-  SetStartPageAndExpects(kStartPage, 0, 1, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  pagination_.EndScroll(true);  // Cancel transition
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(0, observer_.selection_count());
-
-  // Scroll to the previous page (position delta) and cancel it.
-  SetStartPageAndExpects(kStartPage, 0, 1, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  pagination_.EndScroll(true);  // Cancel transition
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(0, observer_.selection_count());
-}
-
-TEST_F(PaginationModelTest, ScrollWithTransition) {
-  const int kStartPage = 2;
-
-  // Scroll to the next page (negative delta) with a transition in the same
-  // direction.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage + 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.6, pagination_.transition().progress);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-
-  // Scroll to the next page (negative delta) with a transition in a different
-  // direction.
-  SetStartPageAndExpects(kStartPage, 0, 1, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage - 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.4, pagination_.transition().progress);
-  pagination_.EndScroll(true);
-
-  // Scroll to the previous page (positive delta) with a transition in the same
-  // direction.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage - 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.6, pagination_.transition().progress);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-
-  // Scroll to the previous page (positive delta) with a transition in a
-  // different direction.
-  SetStartPageAndExpects(kStartPage, 0, 1, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage + 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.4, pagination_.transition().progress);
-  pagination_.EndScroll(true);
-}
-
-TEST_F(PaginationModelTest, LongScroll) {
-  const int kStartPage = 2;
-
-  // Scroll to the next page (negative delta) with a transition in the same
-  // direction. And scroll enough to change page twice.
-  SetStartPageAndExpects(kStartPage, 2, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage + 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.6, pagination_.transition().progress);
-  pagination_.UpdateScroll(-0.5);
-  EXPECT_EQ(1, observer_.selection_count());
-  pagination_.UpdateScroll(-0.5);
-  EXPECT_EQ(kStartPage + 2, pagination_.transition().target_page);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(2, observer_.selection_count());
-
-  // Scroll to the next page (negative delta) with a transition in a different
-  // direction. And scroll enough to revert it and switch page once.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage - 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.4, pagination_.transition().progress);
-  pagination_.UpdateScroll(-0.5);  // This clears the transition.
-  pagination_.UpdateScroll(-0.5);  // This starts a new transition.
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-
-  // Similar cases as above but in the opposite direction.
-  // Scroll to the previous page (positive delta) with a transition in the same
-  // direction. And scroll enough to change page twice.
-  SetStartPageAndExpects(kStartPage, 2, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage - 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.6, pagination_.transition().progress);
-  pagination_.UpdateScroll(0.5);
-  EXPECT_EQ(1, observer_.selection_count());
-  pagination_.UpdateScroll(0.5);
-  EXPECT_EQ(kStartPage - 2, pagination_.transition().target_page);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(2, observer_.selection_count());
-
-  // Scroll to the previous page (positive delta) with a transition in a
-  // different direction. And scroll enough to revert it and switch page once.
-  SetStartPageAndExpects(kStartPage, 1, 0, 0);
-  pagination_.SetTransition(PaginationModel::Transition(kStartPage + 1, 0.5));
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-  EXPECT_EQ(kStartPage + 1, pagination_.transition().target_page);
-  EXPECT_EQ(0.4, pagination_.transition().progress);
-  pagination_.UpdateScroll(0.5);  // This clears the transition.
-  pagination_.UpdateScroll(0.5);  // This starts a new transition.
-  EXPECT_EQ(kStartPage - 1, pagination_.transition().target_page);
-  pagination_.EndScroll(false);
-  base::MessageLoop::current()->Run();
-  EXPECT_EQ(1, observer_.selection_count());
-}
-
-TEST_F(PaginationModelTest, FireTransitionZero) {
-  const int kStartPage = 2;
-
-  // Scroll to next page then revert the scroll and make sure transition
-  // progress 0 is fired when previous scroll is cleared.
-  SetStartPageAndExpects(kStartPage, 0, 0, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(-0.1);
-
-  int target_page = kStartPage + 1;
-  EXPECT_EQ(target_page, pagination_.transition().target_page);
-  observer_.set_transition_page(target_page);
-
-  pagination_.UpdateScroll(0.2);  // This clears the transition.
-  EXPECT_EQ(1, observer_.transition_start_count());
-  pagination_.EndScroll(true);  // Cancel transition.
-
-  // Similar to above but in the other direction.
-  SetStartPageAndExpects(kStartPage, 0, 0, 0);
-  pagination_.StartScroll();
-  pagination_.UpdateScroll(0.1);
-
-  target_page = kStartPage - 1;
-  EXPECT_EQ(target_page, pagination_.transition().target_page);
-  observer_.set_transition_page(target_page);
-
-  pagination_.UpdateScroll(-0.2);  // This clears the transition.
-  EXPECT_EQ(1, observer_.transition_start_count());
-  pagination_.EndScroll(true);  // Cancel transition.
-}
-
-TEST_F(PaginationModelTest, SelectedPageIsLost) {
-  pagination_.SetTotalPages(2);
-  // The selected page is set to 0 once the total number of pages are set.
-  EXPECT_EQ(0, pagination_.selected_page());
-
-  pagination_.SelectPage(1, false /* animate */);
-  EXPECT_EQ(1, pagination_.selected_page());
-
-  // The selected page is unchanged if it's still valid.
-  pagination_.SetTotalPages(3);
-  EXPECT_EQ(1, pagination_.selected_page());
-  pagination_.SetTotalPages(2);
-  EXPECT_EQ(1, pagination_.selected_page());
-
-  // But if the currently selected_page exceeds the total number of pages,
-  // it automatically switches to the last page.
-  pagination_.SetTotalPages(1);
-  EXPECT_EQ(0, pagination_.selected_page());
-}
-
-}  // namespace test
-}  // namespace app_list