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chrome/browser/ui/views/frame/minimize_button_metrics_win.h

Index: chrome/browser/ui/views/frame/minimize_button_metrics_win.h
diff --git a/chrome/browser/ui/views/frame/minimize_button_metrics_win.h b/chrome/browser/ui/views/frame/minimize_button_metrics_win.h
index c3a6d3f34bbf82a68d207684750dc51576c1e4e1..96b1544fe94eb163fb436a12314482c14a3ac272 100644
--- a/chrome/browser/ui/views/frame/minimize_button_metrics_win.h
+++ b/chrome/browser/ui/views/frame/minimize_button_metrics_win.h
@@ -25,6 +25,11 @@ class MinimizeButtonMetrics {
   // value rather than read when called.
   int GetMinimizeButtonOffsetX() const;
 
+  // Obtain the X offset of the native minimize button. Since Windows can lie
+  // to us if we call this at the wrong moment, this might come from a cached
+  // value rather than read when called.
+  int GetMinimizeButtonHeight() const;
+
   // Must be called when hwnd_ is activated to update the minimize button
   // position cache.
   void OnHWNDActivated();
@@ -38,6 +43,9 @@ class MinimizeButtonMetrics {
 
   int GetMinimizeButtonOffsetForWindow() const;
 
+  void UpdateButtonBoundsSizes(const RECT& button_bounds,
+    const RECT& window_bounds) const;
+
   HWND hwnd_;
 
   // Cached offset of the minimize button. If RTL this is the location of the
@@ -52,6 +60,10 @@ class MinimizeButtonMetrics {
   // DWMWA_CAPTION_BUTTON_BOUNDS and WM_GETTITLEBARINFOEX
   static int button_bounds_position_offset_;
 
+  // Static cache of offset value representingthe height of
+  // DWMWA_CAPTION_BUTTON_BOUNDS.
+  static int button_bounds_height_;
+
   // Has OnHWNDActivated() been invoked?
   bool was_activated_;