Move Mus into chrome's process when running with --mus.

ui/base/cursor/image_cursors.cc

Index: ui/base/cursor/image_cursors.cc
diff --git a/ui/base/cursor/image_cursors.cc b/ui/base/cursor/image_cursors.cc
index 93c25a9ae3d32f7c4b4a82167d5067b5486e5792..28d1e93b7ddc190d31f5c0f041928d66626afd5a 100644
--- a/ui/base/cursor/image_cursors.cc
+++ b/ui/base/cursor/image_cursors.cc
@@ -60,7 +60,8 @@ const CursorType kAnimatedCursorIds[] = {CursorType::kWait,
 
 }  // namespace
 
-ImageCursors::ImageCursors() : cursor_size_(CursorSize::kNormal) {}
+ImageCursors::ImageCursors()
+    : cursor_size_(CursorSize::kNormal), weak_ptr_factory_(this) {}
 
 ImageCursors::~ImageCursors() {
 }
@@ -142,4 +143,8 @@ void ImageCursors::SetPlatformCursor(gfx::NativeCursor* cursor) {
   cursor_loader_->SetPlatformCursor(cursor);
 }
 
+base::WeakPtr<ImageCursors> ImageCursors::GetWeakPtr() {
+  return weak_ptr_factory_.GetWeakPtr();
+}
+
 }  // namespace ui