Add the virtual keyboard to BrowserFrameChromeos.

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

Index: chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
diff --git a/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc b/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
index a7a3369fbc4fd1324292d51d5ba8c3dc69414711..34c83785b7cefb994e14140c6a1643a470e4c064 100644
--- a/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
+++ b/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
@@ -177,6 +177,13 @@ OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 }
 
 ///////////////////////////////////////////////////////////////////////////////
+// OpaqueBrowserFrameView, protected:
+
+int OpaqueBrowserFrameView::GetReservedHeight() const {
+  return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 
 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
@@ -1048,5 +1055,6 @@ gfx::Rect OpaqueBrowserFrameView::CalculateClientAreaBounds(int width,
   int border_thickness = NonClientBorderThickness();
   return gfx::Rect(border_thickness, top_height,
                    std::max(0, width - (2 * border_thickness)),
-                   std::max(0, height - top_height - border_thickness));
+                   std::max(0, height - GetReservedHeight() -
+                       top_height - border_thickness));
 }