1 files changed, 16 insertions, 1 deletions
diff --git a/views/controls/single_split_view.cc b/views/controls/single_split_view.cc
index dadf4b2..7915171 100644
--- a/views/controls/single_split_view.cc
+++ b/views/controls/single_split_view.cc
@@ -21,7 +21,8 @@ SingleSplitView::SingleSplitView(View* leading,
                                  View* trailing,
                                  Orientation orientation)
     : is_horizontal_(orientation == HORIZONTAL_SPLIT),
-      divider_offset_(-1) {
+      divider_offset_(-1),
+      resize_leading_on_bounds_change_(true) {
   AddChildView(leading);
   AddChildView(trailing);
 #if defined(OS_WIN)
@@ -31,6 +32,20 @@ SingleSplitView::SingleSplitView(View* leading,
 #endif
 }
 
+void SingleSplitView::DidChangeBounds(const gfx::Rect& previous,
+                                      const gfx::Rect& current) {
+  if (resize_leading_on_bounds_change_) {
+    if (is_horizontal_)
+      divider_offset_ += current.width() - previous.width();
+    else
+      divider_offset_ += current.height() - previous.height();
+
+    if (divider_offset_ < 0)
+      divider_offset_ = kDividerSize;
+  }
+  View::DidChangeBounds(previous, current);
+}
+
 void SingleSplitView::Layout() {
   if (GetChildViewCount() != 2)
     return;