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

extensions/browser/api/cast_channel/keep_alive_delegate_unittest.cc

 // Copyright 2015 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/keep_alive_delegate.h"
 
 #include "base/test/simple_test_tick_clock.h"
 #include "base/timer/mock_timer.h"
 #include "extensions/browser/api/cast_channel/cast_test_util.h"
 #include "net/base/net_errors.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 
 namespace extensions {
-namespace core_api {
+namespace api {
 namespace cast_channel {
 namespace {
 
 const int64 kTestPingTimeoutMillis = 1000;
 const int64 kTestLivenessTimeoutMillis = 10000;
 
 // Extends MockTimer with a mockable method ResetTriggered() which permits
 // test code to set GMock expectations for Timer::Reset().
 class MockTimerWithMonitoredReset : public base::MockTimer {
  public:
@@ skipping 113 matching lines @@
   EXPECT_CALL(*inner_delegate_, Start());
   EXPECT_CALL(*ping_timer_, ResetTriggered()).Times(2);
   EXPECT_CALL(*liveness_timer_, ResetTriggered()).Times(2);
 
   keep_alive_->Start();
   keep_alive_->OnMessage(other_message);
 }
 
 }  // namespace
 }  // namespace cast_channel
-}  // namespace core_api
+}  // namespace api
 }  // namespace extensions