Fix "unreachable code" warnings (MSVC warning 4702) in chrome/browser/.

chrome/browser/chrome_plugin_browsertest.cc

Index: chrome/browser/chrome_plugin_browsertest.cc
===================================================================
--- chrome/browser/chrome_plugin_browsertest.cc	(revision 256983)
+++ chrome/browser/chrome_plugin_browsertest.cc	(working copy)
@@ -246,11 +246,9 @@
   EnsureFlashProcessCount(1);
 }
 
+#if defined(OFFICIAL_BUILD)
 // Verify that the official builds have the known set of plugins.
 IN_PROC_BROWSER_TEST_F(ChromePluginTest, InstalledPlugins) {
-#if !defined(OFFICIAL_BUILD)
-  return;
-#endif
   const char* expected[] = {
     "Chrome PDF Viewer",
     "Shockwave Flash",
@@ -273,6 +271,7 @@
     ASSERT_TRUE(j != plugins.size()) << "Didn't find " << expected[i];
   }
 }
+#endif
 
 #if defined(OS_WIN)
 
@@ -286,7 +285,7 @@
   return FALSE;
 }
 
-}
+}  // namespace
 
 // Test that if a background tab loads an NPAPI plugin, they are displayed after
 // switching to that page.  http://crbug.com/335900