Implement {Start,Stop}CapturingKeyStrokes for Instant.

chrome/renderer/searchbox/searchbox.cc

Index: chrome/renderer/searchbox/searchbox.cc
diff --git a/chrome/renderer/searchbox/searchbox.cc b/chrome/renderer/searchbox/searchbox.cc
index 2a3d2c4ca97d9d74e972ce491734acf6cf8baaa4..9f1e82c294ade030a4037d2e2cc4fc7b7da628c7 100644
--- a/chrome/renderer/searchbox/searchbox.cc
+++ b/chrome/renderer/searchbox/searchbox.cc
@@ -45,6 +45,16 @@ void SearchBox::ShowInstantPreview(InstantShownReason reason,
       height, units));
 }
 
+void SearchBox::StartCapturingKeyStrokes() {
+  render_view()->Send(new ChromeViewHostMsg_StartCapturingKeyStrokes(
+      render_view()->GetRoutingID(), render_view()->GetPageId()));
+}
+
+void SearchBox::StopCapturingKeyStrokes() {
+  render_view()->Send(new ChromeViewHostMsg_StopCapturingKeyStrokes(
+      render_view()->GetRoutingID(), render_view()->GetPageId()));
+}
+
 gfx::Rect SearchBox::GetRect() {
   // Need to adjust for scale.
   if (rect_.IsEmpty())