Move extension API schema registration to ExtensionsClient.

extensions/common/extensions_client.h

Index: extensions/common/extensions_client.h
diff --git a/extensions/common/extensions_client.h b/extensions/common/extensions_client.h
index f0bdc8c4caee61bc4427d08086ae1cca38307b2e..9f4ebf92a9e847262c50d598a6d5f8396e111618 100644
--- a/extensions/common/extensions_client.h
+++ b/extensions/common/extensions_client.h
@@ -18,6 +18,7 @@ namespace extensions {
 
 class APIPermissionSet;
 class Extension;
+class ExtensionAPI;
 class FeatureProvider;
 class JSONFeatureProviderSource;
 class ManifestPermissionSet;
@@ -82,9 +83,13 @@ class ExtensionsClient {
   // Returns true iff a schema named |name| is generated.
   virtual bool IsAPISchemaGenerated(const std::string& name) const = 0;
 
-  // Gets the API schema named |name|.
+  // Gets the generated API schema named |name|.
   virtual base::StringPiece GetAPISchema(const std::string& name) const = 0;
 
+  // Register non-generated API schema resources with the global ExtensionAPI.
+  // Called when the ExtensionAPI is lazily initialized.
+  virtual void RegisterAPISchemaResources(ExtensionAPI* api) const = 0;
+
   // Determines if certain fatal extensions errors should be surpressed
   // (i.e., only logged) or allowed (i.e., logged before crashing).
   virtual bool ShouldSuppressFatalErrors() const = 0;