Instant API: tell page whether the browser is capturing key strokes.

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index e1dee0252c30c0a9c646f53848e46e5ee7808241..9cf8851bd8e21f6132f46f0eaefadda1900ca580 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -326,6 +326,10 @@ IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxThemeChanged,
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxThemeAreaHeightChanged,
                     int /* height */)
 
+IPC_MESSAGE_ROUTED0(ChromeViewMsg_SearchBoxStartedCapturingKeyStrokes)
+
+IPC_MESSAGE_ROUTED0(ChromeViewMsg_SearchBoxStoppedCapturingKeyStrokes)
+
 // Toggles visual muting of the render view area. This is on when a constrained
 // window is showing.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetVisuallyDeemphasized,