Move small c/b/extensions classes into extensions namespace no.1

chrome/browser/extensions/convert_web_app_unittest.cc

Index: chrome/browser/extensions/convert_web_app_unittest.cc
diff --git a/chrome/browser/extensions/convert_web_app_unittest.cc b/chrome/browser/extensions/convert_web_app_unittest.cc
index f869ee05bced967ef9968d72ec324aee449cd4c3..0767ac62fa8a1219faa0945faee75ddce54282bf 100644
--- a/chrome/browser/extensions/convert_web_app_unittest.cc
+++ b/chrome/browser/extensions/convert_web_app_unittest.cc
@@ -27,6 +27,8 @@
 #include "ui/gfx/codec/png_codec.h"
 #include "webkit/glue/image_decoder.h"
 
+namespace extensions {
+
 namespace {
 
 // Returns an icon info corresponding to a canned icon.
@@ -106,7 +108,7 @@ TEST(ExtensionFromWebApp, Basic) {
     web_app.icons.push_back(GetIconInfo(icon_url, sizes[i]));
   }
 
-  scoped_refptr<extensions::Extension> extension = ConvertWebAppToExtension(
+  scoped_refptr<Extension> extension = ConvertWebAppToExtension(
       web_app, GetTestTime(1978, 12, 11, 0, 0, 0, 0));
   ASSERT_TRUE(extension.get());
 
@@ -149,7 +151,7 @@ TEST(ExtensionFromWebApp, Minimal) {
   web_app.title = ASCIIToUTF16("Gearpad");
   web_app.app_url = GURL("http://aaronboodman.com/gearpad/");
 
-  scoped_refptr<extensions::Extension> extension = ConvertWebAppToExtension(
+  scoped_refptr<Extension> extension = ConvertWebAppToExtension(
       web_app, GetTestTime(1978, 12, 11, 0, 0, 0, 0));
   ASSERT_TRUE(extension.get());
 
@@ -173,3 +175,5 @@ TEST(ExtensionFromWebApp, Minimal) {
   EXPECT_EQ("*://aaronboodman.com/*",
             extension->web_extent().patterns().begin()->GetAsString());
 }
+
+}  // namespace extensions