Hook up SetInstantPreviewHeight for ChromeOS.

chrome/browser/ui/browser_instant_controller.cc

Index: chrome/browser/ui/browser_instant_controller.cc
diff --git a/chrome/browser/ui/browser_instant_controller.cc b/chrome/browser/ui/browser_instant_controller.cc
index 461179ed9bdea199a25f349fa92805618b747489..c7d4885496d5e2232046436c93ff1d1e16bb7020 100644
--- a/chrome/browser/ui/browser_instant_controller.cc
+++ b/chrome/browser/ui/browser_instant_controller.cc
@@ -77,11 +77,11 @@ bool BrowserInstantController::OpenInstant(WindowOpenDisposition disposition) {
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserInstantController, InstantControllerDelegate implementation:
 
-void BrowserInstantController::ShowInstant() {
+void BrowserInstantController::ShowInstant(int height, InstantSizeUnits units) {
   // Call ShowInstant() first, before WasShown(), so that the preview is added
   // to the window hierarchy before it's painted. http://crbug.com/145568
   TabContents* preview = instant_->GetPreviewContents();
-  browser_->window()->ShowInstant(preview);
+  browser_->window()->ShowInstant(preview, height, units);
 
   // TODO(beng): Investigate if we can avoid this and instead rely on the
   //             visibility of the WebContentsView.