Use ActiveSupport instead of extlib

lib/google/api_client/discovery/api.rb

@@ -15,7 +15,7 @@
 
 require 'addressable/uri'
 require 'multi_json'
-require 'google/inflection'
+require 'active_support/inflector'
 require 'google/api_client/discovery/resource'
 require 'google/api_client/discovery/method'
 require 'google/api_client/discovery/media'
@@ -41,13 +41,13 @@ module Google
         @discovery_document = discovery_document
         metaclass = (class << self; self; end)
         self.discovered_resources.each do |resource|
-          method_name = Google::INFLECTOR.underscore(resource.name).to_sym
+          method_name = ActiveSupport::Inflector.underscore(resource.name).to_sym
           if !self.respond_to?(method_name)
             metaclass.send(:define_method, method_name) { resource }
           end
         end
         self.discovered_methods.each do |method|
-          method_name = Google::INFLECTOR.underscore(method.name).to_sym
+          method_name = ActiveSupport::Inflector.underscore(method.name).to_sym
           if !self.respond_to?(method_name)
             metaclass.send(:define_method, method_name) { method }
           end

lib/google/api_client/discovery/resource.rb

@@ -15,7 +15,7 @@
 
 require 'addressable/uri'
 
-require 'google/inflection'
+require 'active_support/inflector'
 require 'google/api_client/discovery/method'
 
 
@@ -45,13 +45,13 @@ module Google
         @discovery_document = discovery_document
         metaclass = (class <<self; self; end)
         self.discovered_resources.each do |resource|
-          method_name = Google::INFLECTOR.underscore(resource.name).to_sym
+          method_name = ActiveSupport::Inflector.underscore(resource.name).to_sym
           if !self.respond_to?(method_name)
             metaclass.send(:define_method, method_name) { resource }
           end
         end
         self.discovered_methods.each do |method|
-          method_name = Google::INFLECTOR.underscore(method.name).to_sym
+          method_name = ActiveSupport::Inflector.underscore(method.name).to_sym
           if !self.respond_to?(method_name)
             metaclass.send(:define_method, method_name) { method }
           end

lib/google/api_client/discovery/schema.rb

@@ -21,7 +21,7 @@ require 'autoparse'
 require 'addressable/uri'
 require 'addressable/template'
 
-require 'google/inflection'
+require 'active_support/inflector'
 require 'google/api_client/errors'
 
 
@@ -78,10 +78,8 @@ module Google
         # puts schema_data.inspect
 
         if schema_name
-          api_name_string =
-            Google::INFLECTOR.camelize(api.name)
-          api_version_string =
-            Google::INFLECTOR.camelize(api.version).gsub('.', '_')
+          api_name_string = ActiveSupport::Inflector.camelize(api.name)
+          api_version_string = ActiveSupport::Inflector.camelize(api.version).gsub('.', '_')
           # This is for compatibility with Ruby 1.8.7.
           # TODO(bobaman) Remove this when we eventually stop supporting 1.8.7.
           args = []

lib/google/api_client/service/stub_generator.rb

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+require 'active_support/inflector'
+
 module Google
   class APIClient
     class Service
@@ -25,7 +27,7 @@ module Google
 
           # Handle resources.
           root.discovered_resources.each do |resource|
-            method_name = Google::INFLECTOR.underscore(resource.name).to_sym
+            method_name = ActiveSupport::Inflector.underscore(resource.name).to_sym
             if !self.respond_to?(method_name)
               metaclass.send(:define_method, method_name) do
                 Google::APIClient::Service::Resource.new(service, resource)
@@ -35,7 +37,7 @@ module Google
 
           # Handle methods.
           root.discovered_methods.each do |method|
-            method_name = Google::INFLECTOR.underscore(method.name).to_sym
+            method_name = ActiveSupport::Inflector.underscore(method.name).to_sym
             if !self.respond_to?(method_name)
               metaclass.send(:define_method, method_name) do |*args|
                 if args.length > 1