Panel Overflow on Mac.

chrome/browser/ui/panels/panel_browser_window_cocoa.mm

Index: chrome/browser/ui/panels/panel_browser_window_cocoa.mm
diff --git a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
index 5b8af3166e08ce9311803f921621524267f75604..441c4b1fac699d5ee329d96a749d9d598cf925ab 100644
--- a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
+++ b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
@@ -254,12 +254,18 @@ void PanelBrowserWindowCocoa::DestroyPanelBrowser() {
 }
 
 gfx::Size PanelBrowserWindowCocoa::IconOnlySize() const {
-  // TODO(dimich): to be implemented.
-  return gfx::Size();
+  return gfx::Size([controller_ titlebarIconOnlyWidthInScreenCoordinates],
+                   [controller_ titlebarHeightInScreenCoordinates]);
 }
 
 void PanelBrowserWindowCocoa::EnsurePanelFullyVisible() {
-  // TODO(dimich): to be implemented.
+}
+
+void PanelBrowserWindowCocoa::ApplyVisualStyleForStrip(
+    PanelStripType newPanelStrip) {
+  if (!is_shown_)
+    return;
+  [controller_ applyVisualStyleForStrip:newPanelStrip];
 }
 
 void PanelBrowserWindowCocoa::SetPanelAppIconVisibility(bool visible) {