Introduce apps API target in //apps and move app.runtime API into it

chrome/common/extensions/chrome_extensions_client.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 "chrome/common/extensions/chrome_extensions_client.h"
 
+#include "apps/common/api/generated_schemas.h"
 #include "base/command_line.h"
 #include "chrome/common/extensions/api/generated_schemas.h"
 #include "chrome/common/extensions/chrome_manifest_handlers.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/features/base_feature_provider.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/common/api/generated_schemas.h"
 #include "extensions/common/common_manifest_handlers.h"
 #include "extensions/common/extension.h"
@@ skipping 130 matching lines @@
   if (url.host() == store_url.host()) {
     if (error)
       *error = manifest_errors::kCannotScriptGallery;
     return false;
   }
   return true;
 }
 
 bool ChromeExtensionsClient::IsAPISchemaGenerated(
     const std::string& name) const {
+  // Test from most common to least common.
   return extensions::api::GeneratedSchemas::IsGenerated(name) ||
-         extensions::core_api::GeneratedSchemas::IsGenerated(name);
+         extensions::core_api::GeneratedSchemas::IsGenerated(name) ||
+         apps::api::GeneratedSchemas::IsGenerated(name);
 }
 
 base::StringPiece ChromeExtensionsClient::GetAPISchema(
     const std::string& name) const {
+  // Test from most common to least common.
   if (extensions::api::GeneratedSchemas::IsGenerated(name))
     return extensions::api::GeneratedSchemas::Get(name);
-  return extensions::core_api::GeneratedSchemas::Get(name);
+
+  if (extensions::core_api::GeneratedSchemas::IsGenerated(name))
+    return extensions::core_api::GeneratedSchemas::Get(name);
+
+  return apps::api::GeneratedSchemas::Get(name);
 }
 
 // static
 ChromeExtensionsClient* ChromeExtensionsClient::GetInstance() {
   return g_client.Pointer();
 }
 
 }  // namespace extensions