Remove obsolete scale related APIs for cursor

ash/wm/ash_native_cursor_manager_unittest.cc

Index: ash/wm/ash_native_cursor_manager_unittest.cc
diff --git a/ash/wm/ash_native_cursor_manager_unittest.cc b/ash/wm/ash_native_cursor_manager_unittest.cc
index 141e8a8f1afc85e5ba239147d24dcdd0aa92f15f..812601fe87eb3523d401924d3957db3d89c5f694 100644
--- a/ash/wm/ash_native_cursor_manager_unittest.cc
+++ b/ash/wm/ash_native_cursor_manager_unittest.cc
@@ -62,9 +62,7 @@ TEST_F(AshNativeCursorManagerTest, LockCursor) {
   EXPECT_EQ(ui::kCursorCopy, test_api.GetCurrentCursor().native_type());
   display.set_device_scale_factor(2.0f);
   display.set_rotation(gfx::Display::ROTATE_90);
-  cursor_manager->SetScale(2.5f);
   cursor_manager->SetDisplay(display);
-  EXPECT_EQ(2.5f, test_api.GetCurrentScale());
   EXPECT_EQ(2.0f, test_api.GetDisplay().device_scale_factor());
   EXPECT_EQ(ui::CURSOR_SET_NORMAL, test_api.GetCurrentCursorSet());
   EXPECT_EQ(gfx::Display::ROTATE_90, test_api.GetDisplay().rotation());
@@ -82,13 +80,6 @@ TEST_F(AshNativeCursorManagerTest, LockCursor) {
   cursor_manager->SetCursorSet(ui::CURSOR_SET_NORMAL);
   EXPECT_EQ(ui::CURSOR_SET_NORMAL, test_api.GetCurrentCursorSet());
 
-  // Cusror scale does change even while cursor is locked.
-  EXPECT_EQ(2.5f, test_api.GetCurrentScale());
-  cursor_manager->SetScale(1.f);
-  EXPECT_EQ(1.f, test_api.GetCurrentScale());
-  cursor_manager->SetScale(1.5f);
-  EXPECT_EQ(1.5f, test_api.GetCurrentScale());
-
   // Cursor type does not change while cursor is locked.
   cursor_manager->SetCursor(ui::kCursorPointer);
   EXPECT_EQ(ui::kCursorCopy, test_api.GetCurrentCursor().native_type());
@@ -104,7 +95,6 @@ TEST_F(AshNativeCursorManagerTest, LockCursor) {
   EXPECT_FALSE(cursor_manager->IsCursorLocked());
 
   // Cursor type changes to the one specified while cursor is locked.
-  EXPECT_EQ(1.5f, test_api.GetCurrentScale());
   EXPECT_EQ(ui::kCursorPointer, test_api.GetCurrentCursor().native_type());
   EXPECT_EQ(1.0f, test_api.GetDisplay().device_scale_factor());
   EXPECT_TRUE(test_api.GetCurrentCursor().platform());
@@ -140,19 +130,6 @@ TEST_F(AshNativeCursorManagerTest, SetCursorSet) {
   EXPECT_EQ(ui::CURSOR_SET_NORMAL, test_api.GetCurrentCursorSet());
 }
 
-TEST_F(AshNativeCursorManagerTest, SetScale) {
-  ::wm::CursorManager* cursor_manager = Shell::GetInstance()->cursor_manager();
-  CursorManagerTestApi test_api(cursor_manager);
-
-  EXPECT_EQ(1.f, test_api.GetCurrentScale());
-
-  cursor_manager->SetScale(2.5f);
-  EXPECT_EQ(2.5f, test_api.GetCurrentScale());
-
-  cursor_manager->SetScale(1.f);
-  EXPECT_EQ(1.f, test_api.GetCurrentScale());
-}
-
 TEST_F(AshNativeCursorManagerTest, SetDeviceScaleFactorAndRotation) {
   ::wm::CursorManager* cursor_manager = Shell::GetInstance()->cursor_manager();
   CursorManagerTestApi test_api(cursor_manager);