Add contextual search to the template url system

chrome/browser/search_engines/template_url_unittest.cc

Index: chrome/browser/search_engines/template_url_unittest.cc
diff --git a/chrome/browser/search_engines/template_url_unittest.cc b/chrome/browser/search_engines/template_url_unittest.cc
index 089dd5379b2c521156cecdea2795ad0445ff74bc..a97a919945b037ec50816c2138a62c316feadd9b 100644
--- a/chrome/browser/search_engines/template_url_unittest.cc
+++ b/chrome/browser/search_engines/template_url_unittest.cc
@@ -1396,3 +1396,30 @@ TEST_F(TemplateURLTest, SessionToken) {
   result = url.url_ref().ReplaceSearchTerms(search_terms_args);
   EXPECT_EQ("http://bar/search?q=foo&xssi=t", result);
 }
+
+TEST_F(TemplateURLTest, ContextualSearchParameters) {
+  TemplateURLData data;
+  UIThreadSearchTermsData::SetGoogleBaseURL("http://bar/");
+  data.SetURL("http://bar/_/contextualsearch?"
+              "{google:contextualSearchVersion}"
+              "{google:contextualSearchContextData}");
+
+  TemplateURL url(NULL, data);
+  TemplateURLRef::SearchTermsArgs search_terms_args(ASCIIToUTF16("foo"));
+  std::string result = url.url_ref().ReplaceSearchTerms(search_terms_args);
+  EXPECT_EQ("http://bar/_/contextualsearch?", result);
+
+  TemplateURLRef::SearchTermsArgs::ContextualSearchParams params(
+      1, 6, 11, "allen", "woody+allen+movies", "www.wikipedia.org",
+      "utf-8");
+  search_terms_args.contextual_search_params = params;
+  result = url.url_ref().ReplaceSearchTerms(search_terms_args);
+  EXPECT_EQ("http://bar/_/contextualsearch?"
+                "ctxs=1&"
+                "ctxs_start=6&"
+                "ctxs_end=11&"
+                "q=allen&"
+                "ctxs_content=woody+allen+movies&"
+                "ctxs_url=www.wikipedia.org&"
+            "ctxs_encoding=utf-8&", result);
+}