Let html_viewer handle more MIME types.

mojo/runner/context.cc

 // Copyright 2013 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 "mojo/runner/context.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 44 matching lines @@
 
   ~Setup() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Setup);
 };
 
 void InitContentHandlers(package_manager::PackageManagerImpl* manager,
                          const base::CommandLine& command_line) {
   // Default content handlers.
+  manager->RegisterContentHandler("application/javascript",
+                                  GURL("mojo:html_viewer"));
   manager->RegisterContentHandler("application/pdf", GURL("mojo:pdf_viewer"));
+  manager->RegisterContentHandler("image/gif", GURL("mojo:html_viewer"));
+  manager->RegisterContentHandler("image/jpeg", GURL("mojo:html_viewer"));
   manager->RegisterContentHandler("image/png", GURL("mojo:png_viewer"));
+  manager->RegisterContentHandler("text/css", GURL("mojo:html_viewer"));
   manager->RegisterContentHandler("text/html", GURL("mojo:html_viewer"));
   manager->RegisterContentHandler("text/plain", GURL("mojo:html_viewer"));
 
   // Command-line-specified content handlers.
   std::string handlers_spec =
       command_line.GetSwitchValueASCII(switches::kContentHandlers);
   if (handlers_spec.empty())
     return;
 
 #if defined(OS_ANDROID)
@@ skipping 224 matching lines @@
         base::MessageLoop::current()->Quit();
       } else {
         app_complete_callback_.Run();
       }
     }
   }
 }
 
 }  // namespace runner
 }  // namespace mojo