Reenable WorkspaceWindowResizerTest tests on X.

ash/wm/workspace/workspace_window_resizer_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 "ash/wm/workspace/workspace_window_resizer.h"
 
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/property_util.h"
@@ skipping 108 matching lines @@
   TestWindowDelegate delegate2_;
   TestWindowDelegate delegate3_;
   scoped_ptr<aura::Window> window_;
   scoped_ptr<aura::Window> window2_;
   scoped_ptr<aura::Window> window3_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WorkspaceWindowResizerTest);
 };
 
-// TODO(oshima): Disabling these tests because these tests
-// depends on the window to be specific size, but bots doesn't
-// have enough space and the actual window gets smaller, which
-// causing mismatch.
-#if !defined(OS_WIN)
-
 // Assertions around attached window resize dragging from the right with 2
 // windows.
 TEST_F(WorkspaceWindowResizerTest, AttachedResize_RIGHT_2) {
   window_->SetBounds(gfx::Rect(0, 300, 400, 300));
   window2_->SetBounds(gfx::Rect(400, 200, 100, 200));
 
   std::vector<aura::Window*> windows;
   windows.push_back(window2_.get());
   SetGridSize(0);
   scoped_ptr<WorkspaceWindowResizer> resizer(WorkspaceWindowResizer::Create(
@@ skipping 504 matching lines @@
   scoped_ptr<WorkspaceWindowResizer> resizer(WorkspaceWindowResizer::Create(
       window_.get(), gfx::Point(), HTCAPTION, empty_windows()));
   ASSERT_TRUE(resizer.get());
   // Ctrl + drag the window to new poistion by adding (10, 12) to its origin,
   // the window should move to the exact position.
   resizer->Drag(CalculateDragPoint(*resizer, 10, 12), 0);
   resizer->CompleteDrag(ui::EF_CONTROL_DOWN);
   EXPECT_EQ("106,124 320x160", window_->bounds().ToString());
 }
 
-#endif
-
 }  // namespace
 }  // namespace test
 }  // namespace ash