Change device IDs from unsigned to signed.

ash/host/ash_window_tree_host_x11_unittest.cc

 // 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 "ash/host/ash_window_tree_host_x11.h"
 
 #undef None
 #undef Bool
 
 #include "base/sys_info.h"
@@ skipping 74 matching lines @@
 // Send X touch events to one WindowTreeHost. The WindowTreeHost's
 // delegate will get corresponding ui::TouchEvent if the touch events
 // are targeting this WindowTreeHost.
 TEST_F(AshWindowTreeHostX11Test, DispatchTouchEventToOneRootWindow) {
   scoped_ptr<aura::WindowTreeHostX11> window_tree_host(
       new AshWindowTreeHostX11(gfx::Rect(0, 0, 2560, 1700)));
   window_tree_host->InitHost();
   scoped_ptr<RootWindowEventHandler> handler(
       new RootWindowEventHandler(window_tree_host.get()));
 
-  std::vector<unsigned int> devices;
+  std::vector<int> devices;
   devices.push_back(0);
   ui::SetUpTouchDevicesForTest(devices);
   std::vector<ui::Valuator> valuators;
 
   EXPECT_EQ(ui::ET_UNKNOWN, handler->last_touch_type());
   EXPECT_EQ(-1, handler->last_touch_id());
 
   ui::ScopedXI2Event scoped_xevent;
   // This touch is out of bounds.
   scoped_xevent.InitTouchEvent(
@@ skipping 42 matching lines @@
   scoped_ptr<RootWindowEventHandler> handler1(
       new RootWindowEventHandler(window_tree_host1.get()));
 
   int host2_y_offset = 1700;
   scoped_ptr<aura::WindowTreeHostX11> window_tree_host2(
       new AshWindowTreeHostX11(gfx::Rect(0, host2_y_offset, 1920, 1080)));
   window_tree_host2->InitHost();
   scoped_ptr<RootWindowEventHandler> handler2(
       new RootWindowEventHandler(window_tree_host2.get()));
 
-  std::vector<unsigned int> devices;
+  std::vector<int> devices;
   devices.push_back(0);
   ui::SetUpTouchDevicesForTest(devices);
   std::vector<ui::Valuator> valuators;
 
   EXPECT_EQ(ui::ET_UNKNOWN, handler1->last_touch_type());
   EXPECT_EQ(-1, handler1->last_touch_id());
   EXPECT_EQ(ui::ET_UNKNOWN, handler2->last_touch_type());
   EXPECT_EQ(-1, handler2->last_touch_id());
 
   // 2 Touch events are targeted at the second WindowTreeHost.
@@ skipping 74 matching lines @@
   EXPECT_EQ(gfx::Point(0, 0), handler1->last_touch_location());
   EXPECT_EQ(ui::ET_TOUCH_RELEASED, handler2->last_touch_type());
   EXPECT_EQ(1, handler2->last_touch_id());
   EXPECT_EQ(gfx::Point(1600, 2650), handler2->last_touch_location());
 
   handler1.reset();
   handler2.reset();
 }
 
 }  // namespace aura