Prevent querying of restricted query values.

chrome/renderer/searchbox/searchbox_extension.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/searchbox/searchbox_extension.h"
 
 #include "base/i18n/rtl.h"
 #include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
@@ skipping 769 matching lines @@
   if (!result) return v8::Undefined();
 
   // We only support selecting autocomplete results that are URLs.
   string16 text = result->destination_url;
   InstantCompleteBehavior behavior = INSTANT_COMPLETE_NOW;
   InstantSuggestionType type = INSTANT_SUGGESTION_URL;
 
   std::vector<InstantSuggestion> suggestions;
   suggestions.push_back(InstantSuggestion(text, behavior, type));
   SearchBox::Get(render_view)->SetSuggestions(suggestions);
+  // Clear the SearchBox's query text explicitly since this is a restricted
+  // value.
+  SearchBox::Get(render_view)->ClearQuery();
 
   return v8::Undefined();
 }
 
 // static
 v8::Handle<v8::Value> SearchBoxExtensionWrapper::SetQuery(
     const v8::Arguments& args) {
   content::RenderView* render_view = GetRenderView();
   if (!render_view || args.Length() < 2) return v8::Undefined();
 
@@ skipping 26 matching lines @@
   // We only support selecting autocomplete results that are URLs.
   string16 text = result->destination_url;
   InstantCompleteBehavior behavior = INSTANT_COMPLETE_REPLACE;
   // TODO(jered): Distinguish between history URLs and search provider
   // navsuggest URLs so that we can do proper accounting on history URLs.
   InstantSuggestionType type = INSTANT_SUGGESTION_URL;
 
   std::vector<InstantSuggestion> suggestions;
   suggestions.push_back(InstantSuggestion(text, behavior, type));
   SearchBox::Get(render_view)->SetSuggestions(suggestions);
+  // Clear the SearchBox's query text explicitly since this is a restricted
+  // value.
+  SearchBox::Get(render_view)->ClearQuery();
 
   return v8::Undefined();
 }
 
 // static
 v8::Handle<v8::Value> SearchBoxExtensionWrapper::ShowOverlay(
     const v8::Arguments& args) {
   content::RenderView* render_view = GetRenderView();
   if (!render_view || args.Length() < 2) return v8::Undefined();
 
@@ skipping 182 matching lines @@
 void SearchBoxExtension::DispatchThemeChange(WebKit::WebFrame* frame) {
   Dispatch(frame, kDispatchThemeChangeEventScript);
 }
 
 // static
 void SearchBoxExtension::DispatchMostVisitedChanged(
     WebKit::WebFrame* frame) {
   Dispatch(frame, kDispatchMostVisitedChangedScript);
 }
 }  // namespace extensions_v8