Removes workspace_animations.(h,cc)

ash/wm/window_animations.cc

Index: ash/wm/window_animations.cc
diff --git a/ash/wm/window_animations.cc b/ash/wm/window_animations.cc
index 0278a93f0d93945e6c348ed61e7bd9a3efa91e38..a3c0ca80621d645670282782ad7f3a35d751fb82 100644
--- a/ash/wm/window_animations.cc
+++ b/ash/wm/window_animations.cc
@@ -15,7 +15,6 @@
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/wm/window_util.h"
-#include "ash/wm/workspace/workspace_animations.h"
 #include "ash/wm/workspace_controller.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ -73,6 +72,8 @@ int64 Round64(float f) {
 
 }  // namespace
 
+const int kCrossFadeDurationMS = 200;
+
 void AddLayerAnimationsForMinimize(aura::Window* window, bool show) {
   // Recalculate the transform at restore time since the launcher item may have
   // moved while the window was minimized.
@@ -436,12 +437,12 @@ base::TimeDelta GetCrossFadeDuration(const gfx::Rect& old_bounds,
   int max_area = std::max(old_area, new_area);
   // Avoid divide by zero.
   if (max_area == 0)
-    return base::TimeDelta::FromMilliseconds(internal::kWorkspaceSwitchTimeMS);
+    return base::TimeDelta::FromMilliseconds(kCrossFadeDurationMS);
 
   int delta_area = std::abs(old_area - new_area);
   // If the area didn't change, the animation is instantaneous.
   if (delta_area == 0)
-    return base::TimeDelta::FromMilliseconds(internal::kWorkspaceSwitchTimeMS);
+    return base::TimeDelta::FromMilliseconds(kCrossFadeDurationMS);
 
   float factor =
       static_cast<float>(delta_area) / static_cast<float>(max_area);