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

extensions/test/test_extensions_client.cc

Index: extensions/test/test_extensions_client.cc
diff --git a/extensions/test/test_extensions_client.cc b/extensions/test/test_extensions_client.cc
index 83257ee0869bbb4ec8cbbce216d231b370166e15..1e089fb2745e6f07a117bc9d4ffba133a96e1e2c 100644
--- a/extensions/test/test_extensions_client.cc
+++ b/extensions/test/test_extensions_client.cc
@@ -151,12 +151,12 @@ bool TestExtensionsClient::IsScriptableURL(const GURL& url,
 
 bool TestExtensionsClient::IsAPISchemaGenerated(
     const std::string& name) const {
-  return core_api::GeneratedSchemas::IsGenerated(name);
+  return api::GeneratedSchemas::IsGenerated(name);
 }
 
 base::StringPiece TestExtensionsClient::GetAPISchema(
     const std::string& name) const {
-  return core_api::GeneratedSchemas::Get(name);
+  return api::GeneratedSchemas::Get(name);
 }
 
 void TestExtensionsClient::RegisterAPISchemaResources(ExtensionAPI* api) const {