Implement {Start,Stop}CapturingKeyStrokes for Instant.

chrome/renderer/searchbox/searchbox_extension.cc

Index: chrome/renderer/searchbox/searchbox_extension.cc
diff --git a/chrome/renderer/searchbox/searchbox_extension.cc b/chrome/renderer/searchbox/searchbox_extension.cc
index 8296411647957e030abf64dee96972b5c78f8222..affffd80e3398df765e95ca66bc0754365975457 100644
--- a/chrome/renderer/searchbox/searchbox_extension.cc
+++ b/chrome/renderer/searchbox/searchbox_extension.cc
@@ -244,6 +244,14 @@ class SearchBoxExtensionWrapper : public v8::Extension {
   // Requests the preview be shown with the specified contents and height.
   static v8::Handle<v8::Value> Show(const v8::Arguments& args);
 
+  // Start capturing user key strokes.
+  static v8::Handle<v8::Value> StartCapturingKeyStrokes(
+      const v8::Arguments& args);
+
+  // Stop capturing user key strokes.
+  static v8::Handle<v8::Value> StopCapturingKeyStrokes(
+      const v8::Arguments& args);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SearchBoxExtensionWrapper);
 };
@@ -293,6 +301,10 @@ v8::Handle<v8::FunctionTemplate> SearchBoxExtensionWrapper::GetNativeFunction(
     return v8::FunctionTemplate::New(SetQueryFromAutocompleteResult);
   if (name->Equals(v8::String::New("Show")))
     return v8::FunctionTemplate::New(Show);
+  if (name->Equals(v8::String::New("StartCapturingKeyStrokes")))
+    return v8::FunctionTemplate::New(StartCapturingKeyStrokes);
+  if (name->Equals(v8::String::New("StopCapturingKeyStrokes")))
+    return v8::FunctionTemplate::New(StopCapturingKeyStrokes);
   return v8::Handle<v8::FunctionTemplate>();
 }
 
@@ -717,6 +729,24 @@ v8::Handle<v8::Value> SearchBoxExtensionWrapper::Show(
 }
 
 // static
+v8::Handle<v8::Value> SearchBoxExtensionWrapper::StartCapturingKeyStrokes(
+    const v8::Arguments& args) {
+  content::RenderView* render_view = GetRenderView();
+  if (render_view)
+    SearchBox::Get(render_view)->StartCapturingKeyStrokes();
+  return v8::Undefined();
+}
+
+// static
+v8::Handle<v8::Value> SearchBoxExtensionWrapper::StopCapturingKeyStrokes(
+    const v8::Arguments& args) {
+  content::RenderView* render_view = GetRenderView();
+  if (render_view)
+    SearchBox::Get(render_view)->StopCapturingKeyStrokes();
+  return v8::Undefined();
+}
+
+// static
 void SearchBoxExtension::DispatchChange(WebKit::WebFrame* frame) {
   DVLOG(1) << "DispatchChange";
   Dispatch(frame, kDispatchChangeEventScript);