Remove obsolete scale related APIs for cursor

ui/wm/core/cursor_manager_unittest.cc

Index: ui/wm/core/cursor_manager_unittest.cc
diff --git a/ui/wm/core/cursor_manager_unittest.cc b/ui/wm/core/cursor_manager_unittest.cc
index 9348b9d0a99538bfc1d4fa9b1c07bed233bb7716..58c3b174d804dcd466b4bdfe63bada5aec1f6700 100644
--- a/ui/wm/core/cursor_manager_unittest.cc
+++ b/ui/wm/core/cursor_manager_unittest.cc
@@ -40,12 +40,6 @@ class TestingCursorManager : public wm::NativeCursorManager {
       wm::NativeCursorManagerDelegate* delegate) OVERRIDE {
     delegate->CommitCursorSet(cursor_set);
   }
-
-  virtual void SetScale(
-      float scale,
-      wm::NativeCursorManagerDelegate* delegate) OVERRIDE {
-    delegate->CommitScale(scale);
-  }
 };
 
 }  // namespace
@@ -197,23 +191,6 @@ TEST_F(CursorManagerTest, SetCursorSet) {
   EXPECT_EQ(ui::CURSOR_SET_NORMAL, cursor_manager_.GetCursorSet());
 }
 
-TEST_F(CursorManagerTest, SetScale) {
-  EXPECT_EQ(1.f, cursor_manager_.GetScale());
-  cursor_manager_.SetScale(2.f);
-  EXPECT_EQ(2.f, cursor_manager_.GetScale());
-
-  // Cusror scale does change even while cursor is locked.
-  cursor_manager_.LockCursor();
-  EXPECT_EQ(2.f, cursor_manager_.GetScale());
-  cursor_manager_.SetScale(2.5f);
-  EXPECT_EQ(2.5f, cursor_manager_.GetScale());
-  cursor_manager_.UnlockCursor();
-
-  EXPECT_EQ(2.5f, cursor_manager_.GetScale());
-  cursor_manager_.SetScale(1.f);
-  EXPECT_EQ(1.f, cursor_manager_.GetScale());
-}
-
 TEST_F(CursorManagerTest, IsMouseEventsEnabled) {
   cursor_manager_.EnableMouseEvents();
   EXPECT_TRUE(cursor_manager_.IsMouseEventsEnabled());