Attempt 2 at:...

chrome/browser/views/find_bar_host_gtk.cc

Index: chrome/browser/views/find_bar_host_gtk.cc
===================================================================
--- chrome/browser/views/find_bar_host_gtk.cc	(revision 30929)
+++ chrome/browser/views/find_bar_host_gtk.cc	(working copy)
@@ -10,14 +10,9 @@
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/views/frame/browser_view.h"
+#include "chrome/browser/views/tab_contents/tab_contents_view_gtk.h"
 #include "views/widget/widget_gtk.h"
 
-void FindBarHost::UpdateWindowEdges(const gfx::Rect& new_pos) {
-  // TODO(davemoore) move the windows implementation to CustomFrameWindow so we
-  // don't have to implement it for gtk
-  NOTIMPLEMENTED();
-}
-
 void FindBarHost::AudibleAlert() {
   // TODO(davemoore) implement
   NOTIMPLEMENTED();
@@ -37,8 +32,12 @@
 }
 
 void FindBarHost::GetDialogPositionNative(gfx::Rect* avoid_overlapping_rect) {
-  // TODO(davemoore) implement
-  NOTIMPLEMENTED();
+  gfx::Rect frame_rect, webcontents_rect;
+  host_->GetRootWidget()->GetBounds(&frame_rect, true);
+  TabContentsView* tab_view = find_bar_controller_->tab_contents()->view();
+  static_cast<TabContentsViewGtk*>(tab_view)->GetBounds(&webcontents_rect,
+                                                        true);
+  avoid_overlapping_rect->Offset(0, webcontents_rect.y() - frame_rect.y());
 }