Generate all extension schema namespaces as "api" and instead vary the generated bundle names.

extensions/browser/api/cast_channel/cast_socket_unittest.cc

 // Copyright 2014 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 "extensions/browser/api/cast_channel/cast_socket.h"
 
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 25 matching lines @@
 using ::testing::_;
 using ::testing::A;
 using ::testing::DoAll;
 using ::testing::Invoke;
 using ::testing::InvokeArgument;
 using ::testing::NotNull;
 using ::testing::Return;
 using ::testing::SaveArg;
 
 namespace extensions {
-namespace core_api {
+namespace api {
 namespace cast_channel {
 const char kAuthNamespace[] = "urn:x-cast:com.google.cast.tp.deviceauth";
 
 // Returns an auth challenge message inline.
 CastMessage CreateAuthChallenge() {
   CastMessage output;
   CreateAuthChallengeMessage(&output);
   return output;
 }
 
@@ skipping 882 matching lines @@
 }
 
 // Tests channel policy verification for device with video out capability.
 TEST_F(CastSocketTest, TestChannelPolicyVerificationCapabilitiesVideoOut) {
   socket_ = TestCastSocket::Create(
       logger_, cast_channel::CastDeviceCapability::VIDEO_OUT);
   EXPECT_TRUE(socket_->TestVerifyChannelPolicyNone());
   EXPECT_FALSE(socket_->TestVerifyChannelPolicyAudioOnly());
 }
 }  // namespace cast_channel
-}  // namespace core_api
+}  // namespace api
 }  // namespace extensions