Revert of Establish MojoChildConnection from BrowserChildProcessHostImpl

chrome/browser/task_manager/providers/child_process_task.cc

Index: chrome/browser/task_manager/providers/child_process_task.cc
diff --git a/chrome/browser/task_manager/providers/child_process_task.cc b/chrome/browser/task_manager/providers/child_process_task.cc
index 1c49fb1a5d42498c8bf28c37a7b03d3b88eafcf5..cbb16e2e141f16a300bac16417247ae23bae4082 100644
--- a/chrome/browser/task_manager/providers/child_process_task.cc
+++ b/chrome/browser/task_manager/providers/child_process_task.cc
@@ -18,7 +18,6 @@
 #include "content/public/browser/browser_child_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_data.h"
-#include "content/public/common/child_process_host.h"
 #include "content/public/common/process_type.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension_set.h"
@@ -112,11 +111,11 @@
   return result_title;
 }
 
-// Connects the |resource_reporter| to the InterfaceRegistry of the
+// Connects the |resource_reporter| to the ServiceRegistry of the
 // BrowserChildProcessHost whose unique ID is |unique_child_process_id|.
 void ConnectResourceReporterOnIOThread(
     int unique_child_process_id,
-    mojom::ResourceUsageReporterRequest resource_reporter) {
+    mojo::InterfaceRequest<mojom::ResourceUsageReporter> resource_reporter) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
 
   content::BrowserChildProcessHost* host =
@@ -124,7 +123,7 @@
   if (!host)
     return;
 
-  shell::InterfaceProvider* interfaces = host->GetHost()->GetRemoteInterfaces();
+  shell::InterfaceProvider* interfaces = host->GetRemoteInterfaces();
   if (interfaces)
     interfaces->GetInterface(std::move(resource_reporter));
 }
@@ -134,15 +133,18 @@
 // |unique_child_process_id|.
 ProcessResourceUsage* CreateProcessResourcesSampler(
     int unique_child_process_id) {
-  mojom::ResourceUsageReporterPtr usage_reporter;
-  mojom::ResourceUsageReporterRequest request = mojo::GetProxy(&usage_reporter);
+  mojom::ResourceUsageReporterPtr service;
+  mojo::InterfaceRequest<mojom::ResourceUsageReporter> usage_reporter =
+      mojo::GetProxy(&service);
+
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,
       base::Bind(&ConnectResourceReporterOnIOThread,
-                 unique_child_process_id, base::Passed(&request)));
-
-  return new ProcessResourceUsage(std::move(usage_reporter));
+                 unique_child_process_id,
+                 base::Passed(&usage_reporter)));
+
+  return new ProcessResourceUsage(std::move(service));
 }
 
 bool UsesV8Memory(int process_type) {