Add key modifier to minimize/restore button click to minimize/restore-all panels for Windows.

chrome/browser/ui/panels/panel_browser_frame_view.cc

Index: chrome/browser/ui/panels/panel_browser_frame_view.cc
diff --git a/chrome/browser/ui/panels/panel_browser_frame_view.cc b/chrome/browser/ui/panels/panel_browser_frame_view.cc
index 5070ac37d9c5450798479a3f5eea087f1b7cbc21..e75012ab1e6dd48299eda90f8d20f2665a89d95a 100644
--- a/chrome/browser/ui/panels/panel_browser_frame_view.cc
+++ b/chrome/browser/ui/panels/panel_browser_frame_view.cc
@@ -542,36 +542,25 @@ void PanelBrowserFrameView::GetAccessibleState(ui::AccessibleViewState* state) {
 }
 
 bool PanelBrowserFrameView::OnMousePressed(const views::MouseEvent& event) {
-  gfx::Point mouse_location = event.location();
-
   if (CanResize() &&
-      IsHitTestValueForResizing(NonClientHitTest(mouse_location)))
+      IsHitTestValueForResizing(NonClientHitTest(event.location())))
     return BrowserNonClientFrameView::OnMousePressed(event);
 
-  // |event.location| is in the view's coordinate system. Convert it to the
-  // screen coordinate system.
-  views::View::ConvertPointToScreen(this, &mouse_location);
-
   if (event.IsOnlyLeftMouseButton() &&
-      panel_browser_view_->OnTitlebarMousePressed(mouse_location)) {
+      panel_browser_view_->OnTitlebarMousePressed(event)) {
     return true;
   }
   return BrowserNonClientFrameView::OnMousePressed(event);
 }
 
 bool PanelBrowserFrameView::OnMouseDragged(const views::MouseEvent& event) {
-  // |event.location| is in the view's coordinate system. Convert it to the
-  // screen coordinate system.
-  gfx::Point mouse_location = event.location();
-  views::View::ConvertPointToScreen(this, &mouse_location);
-
-  if (panel_browser_view_->OnTitlebarMouseDragged(mouse_location))
+  if (panel_browser_view_->OnTitlebarMouseDragged(event))
     return true;
   return BrowserNonClientFrameView::OnMouseDragged(event);
 }
 
 void PanelBrowserFrameView::OnMouseReleased(const views::MouseEvent& event) {
-  if (panel_browser_view_->OnTitlebarMouseReleased())
+  if (panel_browser_view_->OnTitlebarMouseReleased(event))
     return;
   BrowserNonClientFrameView::OnMouseReleased(event);
 }
@@ -587,9 +576,9 @@ void PanelBrowserFrameView::ButtonPressed(views::Button* sender,
   if (sender == close_button_)
     frame()->Close();
   else if (sender == minimize_button_)
-    panel_browser_view_->panel()->Minimize();
+    panel_browser_view_->MinimizeButtonPressed(event);
   else if (sender == restore_button_)
-    panel_browser_view_->panel()->Restore();
+    panel_browser_view_->RestoreButtonPressed(event);
 }
 
 bool PanelBrowserFrameView::ShouldTabIconViewAnimate() const {