Adding experimental maximize mode (behind a flag)

chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc

Index: chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc
diff --git a/chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc b/chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc
index 2b1bfa71bc56285621d4ce6a58588adba1754029..72a64c1128ee4d5578495aa4378cc8e1df5c135b 100644
--- a/chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc
+++ b/chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc
@@ -42,10 +42,13 @@ const int kShadowHeightStretch = -1;
 class AppNonClientFrameViewAsh::ControlView
     : public views::View, public views::ButtonListener {
  public:
+  // TODO(skuhne): If we keep the "always maximized" experiment we might want to
+  // make this function be able to work with a |restore_button_| which is NULL.
   explicit ControlView(AppNonClientFrameViewAsh* owner) :
       owner_(owner),
       close_button_(new views::ImageButton(this)),
-      restore_button_(new ash::FrameMaximizeButton(this, owner_))
+      restore_button_(new ash::FrameMaximizeButton(this, owner_)),
+      original_maximize_button_width_(0)
   {
     close_button_->SetAccessibleName(
         l10n_util::GetStringUTF16(IDS_ACCNAME_CLOSE));
@@ -69,6 +72,18 @@ class AppNonClientFrameViewAsh::ControlView
   virtual ~ControlView() {}
 
   virtual void Layout() OVERRIDE {
+    if (ash::Shell::IsForcedMaximizeMode()) {
+      // TODO(skuhne): If this experiment would get persued, it would be better
+      // to check here the |restore_button_|'s visibility. Furthermore we
+      // should change |shadow_| to a new bitmap which can host only a single
+      // button.
+      gfx::Size size = restore_button_->bounds().size();
+      if (size.width()) {
+        original_maximize_button_width_ = size.width();
+        size.set_width(0);
+        restore_button_->SetSize(size);
+      }
+    }
     restore_button_->SetPosition(gfx::Point(kShadowStart, 0));
     close_button_->SetPosition(gfx::Point(kShadowStart +
         restore_button_->width() - kButtonOverlap, 0));
@@ -92,7 +107,7 @@ class AppNonClientFrameViewAsh::ControlView
   }
 
   virtual gfx::Size GetPreferredSize() OVERRIDE {
-    return gfx::Size(shadow_->width(),
+    return gfx::Size(shadow_->width() - original_maximize_button_width_,
                      shadow_->height() + kShadowHeightStretch);
   }
 
@@ -153,6 +168,9 @@ class AppNonClientFrameViewAsh::ControlView
   const gfx::ImageSkia* control_base_;
   const gfx::ImageSkia* shadow_;
 
+  // The original size of the maximize button.
+  int original_maximize_button_width_;
+
   DISALLOW_COPY_AND_ASSIGN(ControlView);
 };