Change grow box computation back to a method on BrowserWindow

content/browser/renderer_host/render_widget_host_view.h

Index: content/browser/renderer_host/render_widget_host_view.h
diff --git a/content/browser/renderer_host/render_widget_host_view.h b/content/browser/renderer_host/render_widget_host_view.h
index ee604f70c0dc341b5ef885cb778c7110f285d468..8a2a853cd325af5c5831f8be4703c727d803617e 100644
--- a/content/browser/renderer_host/render_widget_host_view.h
+++ b/content/browser/renderer_host/render_widget_host_view.h
@@ -24,7 +24,6 @@
 #include "ui/base/ime/text_input_type.h"
 #include "ui/base/range/range.h"
 #include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/rect.h"
 #include "ui/gfx/surface/transport_dib.h"
 
 struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
@@ -330,13 +329,6 @@ class RenderWidgetHostView {
   BrowserAccessibilityManager* GetBrowserAccessibilityManager() const;
   void SetBrowserAccessibilityManager(BrowserAccessibilityManager* manager);
 
-  gfx::Rect reserved_contents_rect() const {
-    return reserved_rect_;
-  }
-  void set_reserved_contents_rect(const gfx::Rect& reserved_rect) {
-    reserved_rect_ = reserved_rect;
-  }
-
   bool mouse_locked() const { return mouse_locked_; }
 
  protected:
@@ -351,10 +343,6 @@ class RenderWidgetHostView {
   // horizontally. Can be null, in which case we fall back to painting white.
   SkBitmap background_;
 
-  // The current reserved area in view coordinates where contents should not be
-  // rendered to draw the resize corner, sidebar mini tabs etc.
-  gfx::Rect reserved_rect_;
-
   // While the mouse is locked, the cursor is hidden from the user. Mouse events
   // are still generated. However, the position they report is the last known
   // mouse position just as mouse lock was entered; the movement they report