Fix case handling in Instant suggestions.

chrome/browser/instant/instant_browsertest.cc

 // Copyright (c) 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 "base/stringprintf.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/instant/instant_controller.h"
 #include "chrome/browser/instant/instant_loader.h"
 #include "chrome/browser/prefs/pref_service.h"
@@ skipping 61 matching lines @@
   void FocusOmniboxAndWaitForInstantSupport() {
     content::WindowedNotificationObserver observer(
         chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED,
         content::NotificationService::AllSources());
     FocusOmnibox();
     observer.Wait();
   }
 
   void SetOmniboxText(const std::string& text) {
     FocusOmnibox();
-    omnibox()->SetUserText(ASCIIToUTF16(text));
+    omnibox()->SetUserText(UTF8ToUTF16(text));
   }
 
   void SetOmniboxTextAndWaitForInstantToShow(const std::string& text) {
     content::WindowedNotificationObserver observer(
         chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN,
         content::NotificationService::AllSources());
     SetOmniboxText(text);
     observer.Wait();
   }
 
@@ skipping 29 matching lines @@
            GetIntFromJS(rvh, "oncancelcalls", &oncancelcalls_) &&
            GetIntFromJS(rvh, "onresizecalls", &onresizecalls_) &&
            GetStringFromJS(rvh, "value", &value_) &&
            GetBoolFromJS(rvh, "verbatim", &verbatim_) &&
            GetIntFromJS(rvh, "height", &height_);
   }
 
   bool ExecuteScript(const std::string& script) WARN_UNUSED_RESULT {
     return content::ExecuteJavaScript(
         instant()->GetPreviewContents()->web_contents()->GetRenderViewHost(),
-        std::wstring(), ASCIIToWide(script));
+        std::wstring(), UTF8ToWide(script));
   }
 
   bool CheckVisibilityIs(TabContents* tab, bool expected) WARN_UNUSED_RESULT {
     bool actual = !expected;  // Purposely start with a mis-match.
     // We can only use ASSERT_*() in a method that returns void, hence this
     // convoluted check.
     return GetBoolFromJS(tab->web_contents()->GetRenderViewHost(),
                          "!document.webkitHidden", &actual) &&
            actual == expected;
   }
@@ skipping 717 matching lines @@
   // Instant is showing, so OnStaleLoader() shouldn't kill the preview.
   instant()->stale_loader_timer_.Stop();
   instant()->OnStaleLoader();
   EXPECT_TRUE(instant()->is_showing());
 
   // The preview should be recreated once the omnibox loses focus.
   EXPECT_TRUE(instant()->loader()->supports_instant());
   instant()->OnAutocompleteLostFocus(NULL);
   EXPECT_FALSE(instant()->loader()->supports_instant());
 }
+
+// Test that suggestions are case insensitive. http://crbug.com/150728
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionsAreCaseInsensitive) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  FocusOmniboxAndWaitForInstantSupport();
+
+  EXPECT_TRUE(ExecuteScript("suggestion = [ { value: 'INSTANT' } ]"));
+
+  SetOmniboxTextAndWaitForInstantToShow("in");
+  EXPECT_EQ(ASCIIToUTF16("instant"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow("IN");
+  EXPECT_EQ(ASCIIToUTF16("INSTANT"), omnibox()->GetText());
+
+  // U+0130 == LATIN CAPITAL LETTER I WITH DOT ABOVE
+  EXPECT_TRUE(ExecuteScript("suggestion = [ { value: '\\u0130NSTANT' } ]"));
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow("i");
+  EXPECT_EQ(WideToUTF16(L"i\u0307nstant"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow("I");
+  EXPECT_EQ(WideToUTF16(L"I\u0307nstant"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow(WideToUTF8(L"i\u0307"));
+  EXPECT_EQ(WideToUTF16(L"i\u0307nstant"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow(WideToUTF8(L"I\u0307"));
+  EXPECT_EQ(WideToUTF16(L"I\u0307nstant"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow(WideToUTF8(L"\u0130"));
+  EXPECT_EQ(WideToUTF16(L"\u0130NSTANT"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow("in");
+  EXPECT_EQ(ASCIIToUTF16("in"), omnibox()->GetText());
+
+  instant()->Hide();
+  SetOmniboxTextAndWaitForInstantToShow("IN");
+  EXPECT_EQ(ASCIIToUTF16("IN"), omnibox()->GetText());
+}