Move Extension Location and Type enums to Manifest, and move InstallWarning to its own file.

chrome/common/extensions/extension_set_unittest.cc

 // Copyright (c) 2012 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 "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 22 matching lines @@
     manifest.SetString("app.launch.web_url", launch_url);
 
   if (!extent.empty()) {
     ListValue* urls = new ListValue();
     manifest.Set("app.urls", urls);
     urls->Append(Value::CreateStringValue(extent));
   }
 
   std::string error;
   scoped_refptr<Extension> extension(
-      Extension::Create(path, Extension::INTERNAL, manifest,
+      Extension::Create(path, extensions::Manifest::INTERNAL, manifest,
                         Extension::NO_FLAGS, &error));
   EXPECT_TRUE(extension.get()) << error;
   return extension;
 }
 
 } // namespace
 
 TEST(ExtensionSetTest, ExtensionSet) {
   scoped_refptr<Extension> ext1(CreateTestExtension(
       "a", "https://chrome.google.com/launch", "https://chrome.google.com/"));
@@ skipping 73 matching lines @@
   to_add->Insert(ext5);
   to_add->Insert(ext6);
 
   ASSERT_TRUE(extensions.Contains(ext3->id()));
   ASSERT_TRUE(extensions.InsertAll(*to_add));
   EXPECT_EQ(4u, extensions.size());
 
   ASSERT_FALSE(extensions.InsertAll(*to_add));  // Re-adding same set no-ops.
   EXPECT_EQ(4u, extensions.size());
 }