app_list: Add web store search.

chrome/common/extensions/extension_constants.cc

Index: chrome/common/extensions/extension_constants.cc
diff --git a/chrome/common/extensions/extension_constants.cc b/chrome/common/extensions/extension_constants.cc
index 844197bce1fce6375103be3ab6b5704cd112ecc2..32fd81002e2b29017df294dd7e853946061a4a8f 100644
--- a/chrome/common/extensions/extension_constants.cc
+++ b/chrome/common/extensions/extension_constants.cc
@@ -10,6 +10,7 @@
 #include "base/command_line.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_switches.h"
+#include "net/base/escape.h"
 #include "net/base/url_util.h"
 
 namespace extension_urls {
@@ -48,6 +49,18 @@ GURL GetWebstoreItemJsonDataURL(const std::string& extension_id) {
   return GURL(GetWebstoreLaunchURL() + "/inlineinstall/detail/" + extension_id);
 }
 
+GURL GetWebstoreJsonSearchUrl(const std::string& query, const std::string& hl) {
+  GURL url(GetWebstoreLaunchURL() + "/jsonsearch");
+  url = net::AppendQueryParameter(url, "q", query);

[James Cook, 2013/05/20 14:39:34]

Does this query need to be escaped?  I presume that must happen in the calling
code. Maybe the function comment could mention who has to do the escaping?

[xiyuan, 2013/05/20 16:56:31]

Nope, net::AppendQueryParameter does the escape. The caller does not need to do
anything. Function comment updated to make it clear to the future reader.

+  url = net::AppendQueryParameter(url, "hl", hl);
+  return url;
+}
+
+GURL GetWebstoreSearchPageUrl(const std::string& query) {
+  return GURL(GetWebstoreLaunchURL() + "/search/" +
+              net::EscapeQueryParamValue(query, false));
+}
+
 const char kGalleryUpdateHttpsUrl[] =
     "https://clients2.google.com/service/update2/crx";
 // TODO(battre): Delete the HTTP URL once the blacklist is downloaded via HTTPS.