ProcessManagerFactory: fix dependencies in ApiResourceManager, LazyBgndTaskFactory

extensions/browser/api/api_resource_manager.h

Index: extensions/browser/api/api_resource_manager.h
diff --git a/extensions/browser/api/api_resource_manager.h b/extensions/browser/api/api_resource_manager.h
index 1a9a8d90d97724bd1b0fcc93025bc4b79215d43d..064e7454394c46aa21c37e79ac548c3b8b96faa2 100644
--- a/extensions/browser/api/api_resource_manager.h
+++ b/extensions/browser/api/api_resource_manager.h
@@ -20,8 +20,10 @@
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_registry.h"
+#include "extensions/browser/extension_registry_factory.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/browser/process_manager.h"
+#include "extensions/browser/process_manager_factory.h"
 #include "extensions/browser/process_manager_observer.h"
 #include "extensions/common/extension.h"
 
@@ -365,6 +367,17 @@ class ApiResourceManager : public BrowserContextKeyedAPI,
       process_manager_observer_;
 };
 
+template <class T>
+struct BrowserContextFactoryDependencies<ApiResourceManager<T>> {
+  static void DeclareFactoryDependencies(
+      BrowserContextKeyedAPIFactory<ApiResourceManager<T>>* factory) {

[Devlin, 2017/05/12 22:53:59]

Have you done an audit to ensure that all ApiResourceManager implementations
don't implement BrowserContextKeyedAPIFactory::DeclareFactoryDependencies? 
(Otherwise, this wouldn't be called)

[Kevin M, 2017/05/15 18:09:04]

Yes I have. All ApiResourceManagers are produced by
BrowserContextKeyedAPIFactory singletons, or are directly instantiated, as in
the case of webcam_private.

+    factory->DependsOn(
+        ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
+    factory->DependsOn(ExtensionRegistryFactory::GetInstance());
+    factory->DependsOn(ProcessManagerFactory::GetInstance());
+  }
+};
+
 // With WorkerPoolThreadTraits, ApiResourceManager can be used to manage the
 // lifetime of a set of resources that live on sequenced task runner threads
 // which ApiFunctions use. Examples of such resources are temporary file