Replace views::MouseEvent with ui::MouseEvent

ash/wm/partial_screenshot_view.cc

Index: ash/wm/partial_screenshot_view.cc
===================================================================
--- ash/wm/partial_screenshot_view.cc	(revision 151406)
+++ ash/wm/partial_screenshot_view.cc	(working copy)
@@ -59,7 +59,7 @@
 }
 
 gfx::NativeCursor PartialScreenshotView::GetCursor(
-    const views::MouseEvent& event) {
+    const ui::MouseEvent& event) {
   // Always use "crosshair" cursor.
   return ui::kCursorCross;
 }
@@ -96,12 +96,12 @@
   Cancel();
 }
 
-bool PartialScreenshotView::OnMousePressed(const views::MouseEvent& event) {
+bool PartialScreenshotView::OnMousePressed(const ui::MouseEvent& event) {
   start_position_ = event.location();
   return true;
 }
 
-bool PartialScreenshotView::OnMouseDragged(const views::MouseEvent& event) {
+bool PartialScreenshotView::OnMouseDragged(const ui::MouseEvent& event) {
   current_position_ = event.location();
   SchedulePaint();
   is_dragging_ = true;
@@ -113,7 +113,7 @@
   return true;
 }
 
-void PartialScreenshotView::OnMouseReleased(const views::MouseEvent& event) {
+void PartialScreenshotView::OnMouseReleased(const ui::MouseEvent& event) {
   Cancel();
   if (!is_dragging_)
     return;