Add CanMinimize to classes that implement WidgetDelegate::CanMaximize.

There were some cases where we use CanMaximize to determine if
minimization should be disabled. They now use CanMinimize:
- custom_frame_view_ash
- hwnd_message_handler

All classes that implement CanMaximize now implement
CanMinimize in the same way, so there should no change in
behavior.

BUG=328241,341010

Review URL: https://codereview.chromium.org/583603004

Cr-Commit-Position: refs/heads/master@{#296381}

6 files changed, 15 insertions, 0 deletions

diff --git a/ash/shell/panel_window.cc b/ash/shell/panel_window.cc
index 3a197a3..f092aa8 100644
--- a/ash/shell/panel_window.cc
+++ b/ash/shell/panel_window.cc
@@ -81,6 +81,10 @@ bool PanelWindow::CanMaximize() const {
   return false;
 }
 
+bool PanelWindow::CanMinimize() const {
+  return false;
+}
+
 views::NonClientFrameView* PanelWindow::CreateNonClientFrameView(
     views::Widget* widget) {
   return new PanelFrameView(widget, PanelFrameView::FRAME_NONE);
diff --git a/ash/shell/panel_window.h b/ash/shell/panel_window.h
index 2d3a0bd..cee7946 100644
--- a/ash/shell/panel_window.h
+++ b/ash/shell/panel_window.h
@@ -41,6 +41,7 @@ class PanelWindow : public views::WidgetDelegateView {
   virtual View* GetContentsView() OVERRIDE;
   virtual bool CanResize() const OVERRIDE;
   virtual bool CanMaximize() const OVERRIDE;
+  virtual bool CanMinimize() const OVERRIDE;
   virtual views::NonClientFrameView* CreateNonClientFrameView(
       views::Widget* widget) OVERRIDE;
 
diff --git a/ash/shell/toplevel_window.cc b/ash/shell/toplevel_window.cc
index 2f620c1..27c96d6 100644
--- a/ash/shell/toplevel_window.cc
+++ b/ash/shell/toplevel_window.cc
@@ -108,5 +108,9 @@ bool ToplevelWindow::CanMaximize() const {
   return params_.can_maximize;
 }
 
+bool ToplevelWindow::CanMinimize() const {
+  return params_.can_maximize;
+}
+
 }  // namespace shell
 }  // namespace ash
diff --git a/ash/shell/toplevel_window.h b/ash/shell/toplevel_window.h
index 8a31d26..db19d1e 100644
--- a/ash/shell/toplevel_window.h
+++ b/ash/shell/toplevel_window.h
@@ -44,6 +44,7 @@ class ToplevelWindow : public views::WidgetDelegateView {
   virtual View* GetContentsView() OVERRIDE;
   virtual bool CanResize() const OVERRIDE;
   virtual bool CanMaximize() const OVERRIDE;
+  virtual bool CanMinimize() const OVERRIDE;
 
   const CreateParams params_;
 
diff --git a/ash/shell/window_type_launcher.cc b/ash/shell/window_type_launcher.cc
index 78e6b0a..cbd2db3 100644
--- a/ash/shell/window_type_launcher.cc
+++ b/ash/shell/window_type_launcher.cc
@@ -299,6 +299,10 @@ bool WindowTypeLauncher::CanMaximize() const {
   return true;
 }
 
+bool WindowTypeLauncher::CanMinimize() const {
+  return true;
+}
+
 void WindowTypeLauncher::ButtonPressed(views::Button* sender,
                                        const ui::Event& event) {
   if (sender == create_button_) {
diff --git a/ash/shell/window_type_launcher.h b/ash/shell/window_type_launcher.h
index 7a088d9..8cd389c 100644
--- a/ash/shell/window_type_launcher.h
+++ b/ash/shell/window_type_launcher.h
@@ -45,6 +45,7 @@ class WindowTypeLauncher : public views::WidgetDelegateView,
   virtual bool CanResize() const OVERRIDE;
   virtual base::string16 GetWindowTitle() const OVERRIDE;
   virtual bool CanMaximize() const OVERRIDE;
+  virtual bool CanMinimize() const OVERRIDE;
 
   // Overridden from views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,