Remove windows/mac/ios specific code from //ui

ui/events/platform/platform_event_builder_x_unittest.cc

 // Copyright 2015 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/events/platform/platform_event_builder.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event.h"
 #include "ui/events/keycodes/dom4/keycode_converter.h"
 #include "ui/events/platform/x11/device_data_manager_x11.h"
@@ skipping 86 matching lines @@
   ScopedXI2Event native_event_a_released;
   native_event_a_released.InitKeyEvent(ET_KEY_RELEASED, VKEY_A, kNativeCodeA);
   ScopedXI2Event native_event_b_pressed;
   native_event_b_pressed.InitKeyEvent(ET_KEY_PRESSED, VKEY_B, kNativeCodeB);
   ScopedXI2Event native_event_a_pressed_nonstandard_state;
   native_event_a_pressed_nonstandard_state.InitKeyEvent(ET_KEY_PRESSED, VKEY_A,
                                                         kNativeCodeA);
   // IBUS-GTK uses the mask (1 << 25) to detect reposted event.
   static_cast<XEvent*>(native_event_a_pressed_nonstandard_state)->xkey.state |=
       1 << 25;
-#elif defined(OS_WIN)
-  const LPARAM lParam_a = GetLParamFromScanCode(kNativeCodeA);
-  const LPARAM lParam_b = GetLParamFromScanCode(kNativeCodeB);
-  MSG native_event_a_pressed = {NULL, WM_KEYDOWN, VKEY_A, lParam_a};
-  MSG native_event_a_released = {NULL, WM_KEYUP, VKEY_A, lParam_a};
-  MSG native_event_b_pressed = {NULL, WM_KEYUP, VKEY_B, lParam_b};
 #endif
   KeyEvent key_a1 = PlatformEventBuilder::BuildKeyEvent(native_event_a_pressed);
   EXPECT_FALSE(key_a1.IsRepeat());
   KeyEvent key_a1_released =
       PlatformEventBuilder::BuildKeyEvent(native_event_a_released);
   EXPECT_FALSE(key_a1_released.IsRepeat());
 
   KeyEvent key_a2 = PlatformEventBuilder::BuildKeyEvent(native_event_a_pressed);
   EXPECT_FALSE(key_a2.IsRepeat());
   KeyEvent key_a2_repeated =
@@ skipping 118 matching lines @@
 
   native_event.InitGenericButtonEvent(device_id, ET_MOUSE_PRESSED, origin,
                                       EF_LEFT_MOUSE_BUTTON);
   event = PlatformEventBuilder::BuildMouseEvent(native_event);
   event.set_time_stamp(start);
   EXPECT_EQ(2, PlatformEventBuilder::GetRepeatCount(native_event, event));
   PlatformEventBuilder::ResetLastClickForTest();
 }
 
 }  // namespace ui