Mandoline: Rename components/view_manager to components/mus

components/view_manager/public/cpp/tests/view_unittest.cc

Index: components/view_manager/public/cpp/tests/view_unittest.cc
diff --git a/components/view_manager/public/cpp/tests/view_unittest.cc b/components/view_manager/public/cpp/tests/view_unittest.cc
deleted file mode 100644
index 51c6b5e25eefdf3781e670558b3a36ae72f54000..0000000000000000000000000000000000000000
--- a/components/view_manager/public/cpp/tests/view_unittest.cc
+++ /dev/null
@@ -1,884 +0,0 @@
-// 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 "components/view_manager/public/cpp/view.h"
-
-#include "base/logging.h"
-#include "base/strings/stringprintf.h"
-#include "components/view_manager/public/cpp/lib/view_private.h"
-#include "components/view_manager/public/cpp/util.h"
-#include "components/view_manager/public/cpp/view_observer.h"
-#include "components/view_manager/public/cpp/view_property.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojo {
-
-// View ------------------------------------------------------------------------
-
-typedef testing::Test ViewTest;
-
-// Subclass with public ctor/dtor.
-class TestView : public View {
- public:
-  TestView() {
-    ViewPrivate(this).set_id(1);
-  }
-  ~TestView() {}
-
- private:
-  MOJO_DISALLOW_COPY_AND_ASSIGN(TestView);
-};
-
-TEST_F(ViewTest, AddChild) {
-  TestView v1;
-  TestView v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-}
-
-TEST_F(ViewTest, RemoveChild) {
-  TestView v1;
-  TestView v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-  v1.RemoveChild(&v11);
-  EXPECT_EQ(0U, v1.children().size());
-}
-
-TEST_F(ViewTest, Reparent) {
-  TestView v1;
-  TestView v2;
-  TestView v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-  v2.AddChild(&v11);
-  EXPECT_EQ(1U, v2.children().size());
-  EXPECT_EQ(0U, v1.children().size());
-}
-
-TEST_F(ViewTest, Contains) {
-  TestView v1;
-
-  // Direct descendant.
-  TestView v11;
-  v1.AddChild(&v11);
-  EXPECT_TRUE(v1.Contains(&v11));
-
-  // Indirect descendant.
-  TestView v111;
-  v11.AddChild(&v111);
-  EXPECT_TRUE(v1.Contains(&v111));
-}
-
-TEST_F(ViewTest, GetChildById) {
-  TestView v1;
-  ViewPrivate(&v1).set_id(1);
-  TestView v11;
-  ViewPrivate(&v11).set_id(11);
-  v1.AddChild(&v11);
-  TestView v111;
-  ViewPrivate(&v111).set_id(111);
-  v11.AddChild(&v111);
-
-  // Find direct & indirect descendents.
-  EXPECT_EQ(&v11, v1.GetChildById(v11.id()));
-  EXPECT_EQ(&v111, v1.GetChildById(v111.id()));
-}
-
-TEST_F(ViewTest, DrawnAndVisible) {
-  TestView v1;
-  EXPECT_TRUE(v1.visible());
-  EXPECT_FALSE(v1.IsDrawn());
-
-  ViewPrivate(&v1).set_drawn(true);
-
-  TestView v11;
-  v1.AddChild(&v11);
-  EXPECT_TRUE(v11.visible());
-  EXPECT_TRUE(v11.IsDrawn());
-
-  v1.RemoveChild(&v11);
-  EXPECT_TRUE(v11.visible());
-  EXPECT_FALSE(v11.IsDrawn());
-}
-
-namespace {
-DEFINE_VIEW_PROPERTY_KEY(int, kIntKey, -2);
-DEFINE_VIEW_PROPERTY_KEY(const char*, kStringKey, "squeamish");
-}
-
-TEST_F(ViewTest, Property) {
-  TestView v;
-
-  // Non-existent properties should return the default values.
-  EXPECT_EQ(-2, v.GetLocalProperty(kIntKey));
-  EXPECT_EQ(std::string("squeamish"), v.GetLocalProperty(kStringKey));
-
-  // A set property value should be returned again (even if it's the default
-  // value).
-  v.SetLocalProperty(kIntKey, INT_MAX);
-  EXPECT_EQ(INT_MAX, v.GetLocalProperty(kIntKey));
-  v.SetLocalProperty(kIntKey, -2);
-  EXPECT_EQ(-2, v.GetLocalProperty(kIntKey));
-  v.SetLocalProperty(kIntKey, INT_MIN);
-  EXPECT_EQ(INT_MIN, v.GetLocalProperty(kIntKey));
-
-  v.SetLocalProperty(kStringKey, static_cast<const char*>(NULL));
-  EXPECT_EQ(NULL, v.GetLocalProperty(kStringKey));
-  v.SetLocalProperty(kStringKey, "squeamish");
-  EXPECT_EQ(std::string("squeamish"), v.GetLocalProperty(kStringKey));
-  v.SetLocalProperty(kStringKey, "ossifrage");
-  EXPECT_EQ(std::string("ossifrage"), v.GetLocalProperty(kStringKey));
-
-  // ClearProperty should restore the default value.
-  v.ClearLocalProperty(kIntKey);
-  EXPECT_EQ(-2, v.GetLocalProperty(kIntKey));
-  v.ClearLocalProperty(kStringKey);
-  EXPECT_EQ(std::string("squeamish"), v.GetLocalProperty(kStringKey));
-}
-
-namespace {
-
-class TestProperty {
- public:
-  TestProperty() {}
-  virtual ~TestProperty() { last_deleted_ = this; }
-  static TestProperty* last_deleted() { return last_deleted_; }
-
- private:
-  static TestProperty* last_deleted_;
-  MOJO_DISALLOW_COPY_AND_ASSIGN(TestProperty);
-};
-
-TestProperty* TestProperty::last_deleted_ = NULL;
-
-DEFINE_OWNED_VIEW_PROPERTY_KEY(TestProperty, kOwnedKey, NULL);
-
-}  // namespace
-
-TEST_F(ViewTest, OwnedProperty) {
-  TestProperty* p3 = NULL;
-  {
-    TestView v;
-    EXPECT_EQ(NULL, v.GetLocalProperty(kOwnedKey));
-    TestProperty* p1 = new TestProperty();
-    v.SetLocalProperty(kOwnedKey, p1);
-    EXPECT_EQ(p1, v.GetLocalProperty(kOwnedKey));
-    EXPECT_EQ(NULL, TestProperty::last_deleted());
-
-    TestProperty* p2 = new TestProperty();
-    v.SetLocalProperty(kOwnedKey, p2);
-    EXPECT_EQ(p2, v.GetLocalProperty(kOwnedKey));
-    EXPECT_EQ(p1, TestProperty::last_deleted());
-
-    v.ClearLocalProperty(kOwnedKey);
-    EXPECT_EQ(NULL, v.GetLocalProperty(kOwnedKey));
-    EXPECT_EQ(p2, TestProperty::last_deleted());
-
-    p3 = new TestProperty();
-    v.SetLocalProperty(kOwnedKey, p3);
-    EXPECT_EQ(p3, v.GetLocalProperty(kOwnedKey));
-    EXPECT_EQ(p2, TestProperty::last_deleted());
-  }
-
-  EXPECT_EQ(p3, TestProperty::last_deleted());
-}
-
-// ViewObserver --------------------------------------------------------
-
-typedef testing::Test ViewObserverTest;
-
-bool TreeChangeParamsMatch(const ViewObserver::TreeChangeParams& lhs,
-                           const ViewObserver::TreeChangeParams& rhs) {
-  return lhs.target == rhs.target &&  lhs.old_parent == rhs.old_parent &&
-      lhs.new_parent == rhs.new_parent && lhs.receiver == rhs.receiver;
-}
-
-class TreeChangeObserver : public ViewObserver {
- public:
-  explicit TreeChangeObserver(View* observee) : observee_(observee) {
-    observee_->AddObserver(this);
-  }
-  ~TreeChangeObserver() override { observee_->RemoveObserver(this); }
-
-  void Reset() {
-    received_params_.clear();
-  }
-
-  const std::vector<TreeChangeParams>& received_params() {
-    return received_params_;
-  }
-
- private:
-  // Overridden from ViewObserver:
-  void OnTreeChanging(const TreeChangeParams& params) override {
-     received_params_.push_back(params);
-   }
-   void OnTreeChanged(const TreeChangeParams& params) override {
-    received_params_.push_back(params);
-  }
-
-  View* observee_;
-  std::vector<TreeChangeParams> received_params_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(TreeChangeObserver);
-};
-
-// Adds/Removes v11 to v1.
-TEST_F(ViewObserverTest, TreeChange_SimpleAddRemove) {
-  TestView v1;
-  TreeChangeObserver o1(&v1);
-  EXPECT_TRUE(o1.received_params().empty());
-
-  TestView v11;
-  TreeChangeObserver o11(&v11);
-  EXPECT_TRUE(o11.received_params().empty());
-
-  // Add.
-
-  v1.AddChild(&v11);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  ViewObserver::TreeChangeParams p1;
-  p1.target = &v11;
-  p1.receiver = &v1;
-  p1.old_parent = NULL;
-  p1.new_parent = &v1;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  ViewObserver::TreeChangeParams p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-
-  o1.Reset();
-  o11.Reset();
-  EXPECT_TRUE(o1.received_params().empty());
-  EXPECT_TRUE(o11.received_params().empty());
-
-  // Remove.
-
-  v1.RemoveChild(&v11);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v11;
-  p1.receiver = &v1;
-  p1.old_parent = &v1;
-  p1.new_parent = NULL;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-}
-
-// Creates these two trees:
-// v1
-//  +- v11
-// v111
-//  +- v1111
-//  +- v1112
-// Then adds/removes v111 from v11.
-TEST_F(ViewObserverTest, TreeChange_NestedAddRemove) {
-  TestView v1, v11, v111, v1111, v1112;
-
-  // Root tree.
-  v1.AddChild(&v11);
-
-  // Tree to be attached.
-  v111.AddChild(&v1111);
-  v111.AddChild(&v1112);
-
-  TreeChangeObserver o1(&v1), o11(&v11), o111(&v111), o1111(&v1111),
-      o1112(&v1112);
-  ViewObserver::TreeChangeParams p1, p11, p111, p1111, p1112;
-
-  // Add.
-
-  v11.AddChild(&v111);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = NULL;
-  p1.new_parent = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-
-  EXPECT_EQ(2U, o111.received_params().size());
-  p111 = p11;
-  p111.receiver = &v111;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-
-  EXPECT_EQ(2U, o1111.received_params().size());
-  p1111 = p111;
-  p1111.receiver = &v1111;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().back()));
-
-  EXPECT_EQ(2U, o1112.received_params().size());
-  p1112 = p111;
-  p1112.receiver = &v1112;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().back()));
-
-  // Remove.
-  o1.Reset();
-  o11.Reset();
-  o111.Reset();
-  o1111.Reset();
-  o1112.Reset();
-  EXPECT_TRUE(o1.received_params().empty());
-  EXPECT_TRUE(o11.received_params().empty());
-  EXPECT_TRUE(o111.received_params().empty());
-  EXPECT_TRUE(o1111.received_params().empty());
-  EXPECT_TRUE(o1112.received_params().empty());
-
-  v11.RemoveChild(&v111);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = &v11;
-  p1.new_parent = NULL;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-
-  EXPECT_EQ(2U, o111.received_params().size());
-  p111 = p11;
-  p111.receiver = &v111;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-
-  EXPECT_EQ(2U, o1111.received_params().size());
-  p1111 = p111;
-  p1111.receiver = &v1111;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().back()));
-
-  EXPECT_EQ(2U, o1112.received_params().size());
-  p1112 = p111;
-  p1112.receiver = &v1112;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().back()));
-}
-
-TEST_F(ViewObserverTest, TreeChange_Reparent) {
-  TestView v1, v11, v12, v111;
-  v1.AddChild(&v11);
-  v1.AddChild(&v12);
-  v11.AddChild(&v111);
-
-  TreeChangeObserver o1(&v1), o11(&v11), o12(&v12), o111(&v111);
-
-  // Reparent.
-  v12.AddChild(&v111);
-
-  // v1 (root) should see both changing and changed notifications.
-  EXPECT_EQ(4U, o1.received_params().size());
-  ViewObserver::TreeChangeParams p1;
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = &v11;
-  p1.new_parent = &v12;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  // v11 should see changing notifications.
-  EXPECT_EQ(2U, o11.received_params().size());
-  ViewObserver::TreeChangeParams p11;
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-
-  // v12 should see changed notifications.
-  EXPECT_EQ(2U, o12.received_params().size());
-  ViewObserver::TreeChangeParams p12;
-  p12 = p1;
-  p12.receiver = &v12;
-  EXPECT_TRUE(TreeChangeParamsMatch(p12, o12.received_params().back()));
-
-  // v111 should see both changing and changed notifications.
-  EXPECT_EQ(2U, o111.received_params().size());
-  ViewObserver::TreeChangeParams p111;
-  p111 = p1;
-  p111.receiver = &v111;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-}
-
-namespace {
-
-class OrderChangeObserver : public ViewObserver {
- public:
-  struct Change {
-    View* view;
-    View* relative_view;
-    OrderDirection direction;
-  };
-  typedef std::vector<Change> Changes;
-
-  explicit OrderChangeObserver(View* observee) : observee_(observee) {
-    observee_->AddObserver(this);
-  }
-  ~OrderChangeObserver() override { observee_->RemoveObserver(this); }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes_.swap(changes);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewObserver:
-  void OnViewReordering(View* view,
-                        View* relative_view,
-                        OrderDirection direction) override {
-    OnViewReordered(view, relative_view, direction);
-  }
-
-  void OnViewReordered(View* view,
-                       View* relative_view,
-                       OrderDirection direction) override {
-    Change change;
-    change.view = view;
-    change.relative_view = relative_view;
-    change.direction = direction;
-    changes_.push_back(change);
-  }
-
-  View* observee_;
-  Changes changes_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(OrderChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewObserverTest, Order) {
-  TestView v1, v11, v12, v13;
-  v1.AddChild(&v11);
-  v1.AddChild(&v12);
-  v1.AddChild(&v13);
-
-  // Order: v11, v12, v13
-  EXPECT_EQ(3U, v1.children().size());
-  EXPECT_EQ(&v11, v1.children().front());
-  EXPECT_EQ(&v13, v1.children().back());
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 to front.
-    // Resulting order: v12, v13, v11
-    v11.MoveToFront();
-    EXPECT_EQ(&v12, v1.children().front());
-    EXPECT_EQ(&v11, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].view);
-    EXPECT_EQ(&v13, changes[0].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_ABOVE, changes[0].direction);
-
-    EXPECT_EQ(&v11, changes[1].view);
-    EXPECT_EQ(&v13, changes[1].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_ABOVE, changes[1].direction);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 to back.
-    // Resulting order: v11, v12, v13
-    v11.MoveToBack();
-    EXPECT_EQ(&v11, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].view);
-    EXPECT_EQ(&v12, changes[0].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_BELOW, changes[0].direction);
-
-    EXPECT_EQ(&v11, changes[1].view);
-    EXPECT_EQ(&v12, changes[1].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_BELOW, changes[1].direction);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 above v12.
-    // Resulting order: v12. v11, v13
-    v11.Reorder(&v12, ORDER_DIRECTION_ABOVE);
-    EXPECT_EQ(&v12, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].view);
-    EXPECT_EQ(&v12, changes[0].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_ABOVE, changes[0].direction);
-
-    EXPECT_EQ(&v11, changes[1].view);
-    EXPECT_EQ(&v12, changes[1].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_ABOVE, changes[1].direction);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 below v12.
-    // Resulting order: v11, v12, v13
-    v11.Reorder(&v12, ORDER_DIRECTION_BELOW);
-    EXPECT_EQ(&v11, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].view);
-    EXPECT_EQ(&v12, changes[0].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_BELOW, changes[0].direction);
-
-    EXPECT_EQ(&v11, changes[1].view);
-    EXPECT_EQ(&v12, changes[1].relative_view);
-    EXPECT_EQ(ORDER_DIRECTION_BELOW, changes[1].direction);
-  }
-}
-
-namespace {
-
-typedef std::vector<std::string> Changes;
-
-std::string ViewIdToString(Id id) {
-  return (id == 0) ? "null" :
-      base::StringPrintf("%d,%d", HiWord(id), LoWord(id));
-}
-
-std::string RectToString(const Rect& rect) {
-  return base::StringPrintf("%d,%d %dx%d",
-                            rect.x, rect.y, rect.width, rect.height);
-}
-
-class BoundsChangeObserver : public ViewObserver {
- public:
-  explicit BoundsChangeObserver(View* view) : view_(view) {
-    view_->AddObserver(this);
-  }
-  ~BoundsChangeObserver() override { view_->RemoveObserver(this); }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes.swap(changes_);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewObserver:
-  void OnViewBoundsChanging(View* view,
-                            const Rect& old_bounds,
-                            const Rect& new_bounds) override {
-    changes_.push_back(
-        base::StringPrintf(
-            "view=%s old_bounds=%s new_bounds=%s phase=changing",
-            ViewIdToString(view->id()).c_str(),
-            RectToString(old_bounds).c_str(),
-            RectToString(new_bounds).c_str()));
-  }
-  void OnViewBoundsChanged(View* view,
-                           const Rect& old_bounds,
-                           const Rect& new_bounds) override {
-    changes_.push_back(
-        base::StringPrintf(
-            "view=%s old_bounds=%s new_bounds=%s phase=changed",
-            ViewIdToString(view->id()).c_str(),
-            RectToString(old_bounds).c_str(),
-            RectToString(new_bounds).c_str()));
-  }
-
-  View* view_;
-  Changes changes_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(BoundsChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewObserverTest, SetBounds) {
-  TestView v1;
-  {
-    BoundsChangeObserver observer(&v1);
-    Rect rect;
-    rect.width = rect.height = 100;
-    v1.SetBounds(rect);
-
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ(
-        "view=0,1 old_bounds=0,0 0x0 new_bounds=0,0 100x100 phase=changing",
-        changes[0]);
-    EXPECT_EQ(
-        "view=0,1 old_bounds=0,0 0x0 new_bounds=0,0 100x100 phase=changed",
-        changes[1]);
-  }
-}
-
-namespace {
-
-class VisibilityChangeObserver : public ViewObserver {
- public:
-  explicit VisibilityChangeObserver(View* view) : view_(view) {
-    view_->AddObserver(this);
-  }
-  ~VisibilityChangeObserver() override { view_->RemoveObserver(this); }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes.swap(changes_);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewObserver:
-  void OnViewVisibilityChanging(View* view) override {
-    changes_.push_back(
-        base::StringPrintf("view=%s phase=changing visibility=%s",
-                           ViewIdToString(view->id()).c_str(),
-                           view->visible() ? "true" : "false"));
-  }
-  void OnViewVisibilityChanged(View* view) override {
-    changes_.push_back(base::StringPrintf("view=%s phase=changed visibility=%s",
-                                          ViewIdToString(view->id()).c_str(),
-                                          view->visible() ? "true" : "false"));
-  }
-
-  View* view_;
-  Changes changes_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(VisibilityChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewObserverTest, SetVisible) {
-  TestView v1;
-  EXPECT_TRUE(v1.visible());
-  {
-    // Change visibility from true to false and make sure we get notifications.
-    VisibilityChangeObserver observer(&v1);
-    v1.SetVisible(false);
-
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(2U, changes.size());
-    EXPECT_EQ("view=0,1 phase=changing visibility=true", changes[0]);
-    EXPECT_EQ("view=0,1 phase=changed visibility=false", changes[1]);
-  }
-  {
-    // Set visible to existing value and verify no notifications.
-    VisibilityChangeObserver observer(&v1);
-    v1.SetVisible(false);
-    EXPECT_TRUE(observer.GetAndClearChanges().empty());
-  }
-}
-
-TEST_F(ViewObserverTest, SetVisibleParent) {
-  TestView parent;
-  ViewPrivate(&parent).set_id(1);
-  TestView child;
-  ViewPrivate(&child).set_id(2);
-  parent.AddChild(&child);
-  EXPECT_TRUE(parent.visible());
-  EXPECT_TRUE(child.visible());
-  {
-    // Change visibility from true to false and make sure we get notifications
-    // on the parent.
-    VisibilityChangeObserver observer(&parent);
-    child.SetVisible(false);
-
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(1U, changes.size());
-    EXPECT_EQ("view=0,2 phase=changed visibility=false", changes[0]);
-  }
-}
-
-TEST_F(ViewObserverTest, SetVisibleChild) {
-  TestView parent;
-  ViewPrivate(&parent).set_id(1);
-  TestView child;
-  ViewPrivate(&child).set_id(2);
-  parent.AddChild(&child);
-  EXPECT_TRUE(parent.visible());
-  EXPECT_TRUE(child.visible());
-  {
-    // Change visibility from true to false and make sure we get notifications
-    // on the child.
-    VisibilityChangeObserver observer(&child);
-    parent.SetVisible(false);
-
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(1U, changes.size());
-    EXPECT_EQ("view=0,1 phase=changed visibility=false", changes[0]);
-  }
-}
-
-namespace {
-
-class SharedPropertyChangeObserver : public ViewObserver {
- public:
-  explicit SharedPropertyChangeObserver(View* view) : view_(view) {
-    view_->AddObserver(this);
-  }
-  ~SharedPropertyChangeObserver() override { view_->RemoveObserver(this); }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes.swap(changes_);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewObserver:
-  void OnViewSharedPropertyChanged(
-      View* view,
-      const std::string& name,
-      const std::vector<uint8_t>* old_data,
-      const std::vector<uint8_t>* new_data) override {
-    changes_.push_back(base::StringPrintf(
-        "view=%s shared property changed key=%s old_value=%s new_value=%s",
-        ViewIdToString(view->id()).c_str(), name.c_str(),
-        VectorToString(old_data).c_str(), VectorToString(new_data).c_str()));
-  }
-
-  std::string VectorToString(const std::vector<uint8_t>* data) {
-    if (!data)
-      return "NULL";
-    std::string s;
-    for (char c : *data)
-      s += c;
-    return s;
-  }
-
-  View* view_;
-  Changes changes_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(SharedPropertyChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewObserverTest, SetLocalProperty) {
-  TestView v1;
-  std::vector<uint8_t> one(1, '1');
-
-  {
-    // Change visibility from true to false and make sure we get notifications.
-    SharedPropertyChangeObserver observer(&v1);
-    v1.SetSharedProperty("one", &one);
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(1U, changes.size());
-    EXPECT_EQ(
-        "view=0,1 shared property changed key=one old_value=NULL new_value=1",
-        changes[0]);
-    EXPECT_EQ(1U, v1.shared_properties().size());
-  }
-  {
-    // Set visible to existing value and verify no notifications.
-    SharedPropertyChangeObserver observer(&v1);
-    v1.SetSharedProperty("one", &one);
-    EXPECT_TRUE(observer.GetAndClearChanges().empty());
-    EXPECT_EQ(1U, v1.shared_properties().size());
-  }
-  {
-    // Set the value to NULL to delete it.
-    // Change visibility from true to false and make sure we get notifications.
-    SharedPropertyChangeObserver observer(&v1);
-    v1.SetSharedProperty("one", NULL);
-    Changes changes = observer.GetAndClearChanges();
-    ASSERT_EQ(1U, changes.size());
-    EXPECT_EQ(
-        "view=0,1 shared property changed key=one old_value=1 new_value=NULL",
-        changes[0]);
-    EXPECT_EQ(0U, v1.shared_properties().size());
-  }
-  {
-    // Setting a null property to null shouldn't update us.
-    SharedPropertyChangeObserver observer(&v1);
-    v1.SetSharedProperty("one", NULL);
-    EXPECT_TRUE(observer.GetAndClearChanges().empty());
-    EXPECT_EQ(0U, v1.shared_properties().size());
-  }
-}
-
-namespace {
-
-typedef std::pair<const void*, intptr_t> PropertyChangeInfo;
-
-class LocalPropertyChangeObserver : public ViewObserver {
- public:
-  explicit LocalPropertyChangeObserver(View* view)
-      : view_(view),
-        property_key_(nullptr),
-        old_property_value_(-1) {
-    view_->AddObserver(this);
-  }
-  ~LocalPropertyChangeObserver() override { view_->RemoveObserver(this); }
-
-  PropertyChangeInfo PropertyChangeInfoAndClear() {
-    PropertyChangeInfo result(property_key_, old_property_value_);
-    property_key_ = NULL;
-    old_property_value_ = -3;
-    return result;
-  }
-
- private:
-  void OnViewLocalPropertyChanged(View* window,
-                                  const void* key,
-                                  intptr_t old) override {
-    property_key_ = key;
-    old_property_value_ = old;
-  }
-
-  View* view_;
-  const void* property_key_;
-  intptr_t old_property_value_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(LocalPropertyChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewObserverTest, LocalPropertyChanged) {
-  TestView v1;
-  LocalPropertyChangeObserver o(&v1);
-
-  static const ViewProperty<int> prop = {-2};
-
-  v1.SetLocalProperty(&prop, 1);
-  EXPECT_EQ(PropertyChangeInfo(&prop, -2), o.PropertyChangeInfoAndClear());
-  v1.SetLocalProperty(&prop, -2);
-  EXPECT_EQ(PropertyChangeInfo(&prop, 1), o.PropertyChangeInfoAndClear());
-  v1.SetLocalProperty(&prop, 3);
-  EXPECT_EQ(PropertyChangeInfo(&prop, -2), o.PropertyChangeInfoAndClear());
-  v1.ClearLocalProperty(&prop);
-  EXPECT_EQ(PropertyChangeInfo(&prop, 3), o.PropertyChangeInfoAndClear());
-
-  // Sanity check to see if |PropertyChangeInfoAndClear| really clears.
-  EXPECT_EQ(PropertyChangeInfo(
-      reinterpret_cast<const void*>(NULL), -3), o.PropertyChangeInfoAndClear());
-}
-
-}  // namespace mojo