Do not scale cursor image for 2x image

ui/base/x/x11_util.cc

Index: ui/base/x/x11_util.cc
diff --git a/ui/base/x/x11_util.cc b/ui/base/x/x11_util.cc
index 4bfd5c7ee9f9d8222c2a4f42e6a3f7252a6a7d79..5ab953437ed56a3010bf012ebc9c18f146ba2633 100644
--- a/ui/base/x/x11_util.cc
+++ b/ui/base/x/x11_util.cc
@@ -167,6 +167,10 @@ class XCustomCursorCache {
     cache_.clear();
   }
 
+  const XcursorImage* GetXcursorImage(::Cursor cursor) const {
+    return cache_.find(cursor)->second->image();
+  }
+
  private:
   friend struct DefaultSingletonTraits<XCustomCursorCache>;
 
@@ -199,6 +203,10 @@ class XCustomCursorCache {
       return false;
     }
 
+    const XcursorImage* image() const {
+      return image_;
+    };
+
    private:
     XcursorImage* image_;
     int ref_;
@@ -315,11 +323,6 @@ bool QueryRenderSupport(Display* dpy) {
   return cursor_cache->GetCursor(cursor_shape);
 }
 
-void ResetXCursorCache() {
-  delete cursor_cache;
-  cursor_cache = NULL;
-}
-
 ::Cursor CreateReffedCustomXCursor(XcursorImage* image) {
   return XCustomCursorCache::GetInstance()->InstallCustomCursor(image);
 }
@@ -1271,6 +1274,18 @@ void XScopedCursor::reset(::Cursor cursor) {
   cursor_ = cursor;
 }
 
+namespace test {
+
+void ResetXCursorCache() {
+  delete cursor_cache;
+  cursor_cache = NULL;
+}
+
+const XcursorImage* GetCachedXcursorImage(::Cursor cursor) {
+  return XCustomCursorCache::GetInstance()->GetXcursorImage(cursor);
+}
+}
+
 // ----------------------------------------------------------------------------
 // These functions are declared in x11_util_internal.h because they require
 // XLib.h to be included, and it conflicts with many other headers.