Use template specialization to generate WindowProperty code

ui/aura/window_unittest.cc

 // 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/aura/window.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 27 matching lines @@
 #include "ui/events/event_utils.h"
 #include "ui/events/gesture_detection/gesture_configuration.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/gfx/vector2d.h"
 
 DECLARE_WINDOW_PROPERTY_TYPE(const char*)
-DECLARE_WINDOW_PROPERTY_TYPE(int)
+
+namespace {
+
+class TestProperty {
+ public:
+  TestProperty() {}
+  ~TestProperty() {
+    last_deleted_ = this;
+  }
+  static TestProperty* last_deleted() { return last_deleted_; }
+
+ private:
+  static TestProperty* last_deleted_;
+  DISALLOW_COPY_AND_ASSIGN(TestProperty);
+};
+
+TestProperty* TestProperty::last_deleted_ = nullptr;
+
+DEFINE_OWNED_WINDOW_PROPERTY_KEY(TestProperty, kOwnedKey, NULL);
+
+}  // namespace
+
+DECLARE_WINDOW_PROPERTY_TYPE(TestProperty*);
 
 namespace aura {
 namespace test {
 
 class WindowTest : public AuraTestBase {
  public:
   WindowTest() : max_separation_(0) {
   }
 
   void SetUp() override {
@@ skipping 1516 matching lines @@
   w->SetNativeWindowProperty(native_prop_key, NULL);
   EXPECT_EQ(NULL, w->GetNativeWindowProperty(native_prop_key));
 
   // ClearProperty should restore the default value.
   w->ClearProperty(kIntKey);
   EXPECT_EQ(-2, w->GetProperty(kIntKey));
   w->ClearProperty(kStringKey);
   EXPECT_EQ(std::string("squeamish"), w->GetProperty(kStringKey));
 }
 
-namespace {
-
-class TestProperty {
- public:
-  TestProperty() {}
-  virtual ~TestProperty() {
-    last_deleted_ = this;
-  }
-  static TestProperty* last_deleted() { return last_deleted_; }
-
- private:
-  static TestProperty* last_deleted_;
-  DISALLOW_COPY_AND_ASSIGN(TestProperty);
-};
-
-TestProperty* TestProperty::last_deleted_ = NULL;
-
-DEFINE_OWNED_WINDOW_PROPERTY_KEY(TestProperty, kOwnedKey, NULL);
-
-}  // namespace
-
 TEST_F(WindowTest, OwnedProperty) {
   scoped_ptr<Window> w(CreateTestWindowWithId(0, root_window()));
   EXPECT_EQ(NULL, w->GetProperty(kOwnedKey));
   TestProperty* p1 = new TestProperty();
   w->SetProperty(kOwnedKey, p1);
   EXPECT_EQ(p1, w->GetProperty(kOwnedKey));
   EXPECT_EQ(NULL, TestProperty::last_deleted());
 
   TestProperty* p2 = new TestProperty();
   w->SetProperty(kOwnedKey, p2);
@@ skipping 1899 matching lines @@
 
   EXPECT_TRUE(animator.get());
   EXPECT_FALSE(animator->is_animating());
   EXPECT_TRUE(observer.animation_completed());
   EXPECT_FALSE(observer.animation_aborted());
   animator->RemoveObserver(&observer);
 }
 
 }  // namespace test
 }  // namespace aura