Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

chrome/browser/task_manager/task_manager_worker_resource_provider.cc

Index: chrome/browser/task_manager/task_manager_worker_resource_provider.cc
===================================================================
--- chrome/browser/task_manager/task_manager_worker_resource_provider.cc	(revision 118420)
+++ chrome/browser/task_manager/task_manager_worker_resource_provider.cc	(working copy)
@@ -11,7 +11,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/debugger/devtools_window.h"
 #include "chrome/browser/profiles/profile_manager.h"
-#include "content/browser/browser_child_process_host.h"
 #include "content/browser/worker_host/worker_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_data.h"
@@ -218,7 +217,7 @@
       WorkerProcessHost* process,
       const WorkerProcessHost::WorkerInstance& instance) {
   TaskManagerSharedWorkerResource* resource =
-      new TaskManagerSharedWorkerResource(process->data(),
+      new TaskManagerSharedWorkerResource(process->GetData(),
                                           instance.worker_route_id(),
                                           instance.url(), instance.name());
   BrowserThread::PostTask(
@@ -233,7 +232,7 @@
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE, base::Bind(
           &TaskManagerWorkerResourceProvider::NotifyWorkerDestroyed,
-          this, process->data().id, worker_route_id));
+          this, process->GetData().id, worker_route_id));
 }
 
 void TaskManagerWorkerResourceProvider::Observe(
@@ -304,14 +303,12 @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   scoped_ptr<WorkerResourceListHolder> holder(new WorkerResourceListHolder);
-  BrowserChildProcessHost::Iterator iter(content::PROCESS_TYPE_WORKER);
-  for (; !iter.Done(); ++iter) {
-    WorkerProcessHost* worker = static_cast<WorkerProcessHost*>(*iter);
-    const WorkerProcessHost::Instances& instances = worker->instances();
+  for (WorkerProcessHostIterator iter; !iter.Done(); ++iter) {
+    const WorkerProcessHost::Instances& instances = (*iter)->instances();
     for (WorkerProcessHost::Instances::const_iterator i = instances.begin();
          i != instances.end(); ++i) {
        holder->resources()->push_back(new TaskManagerSharedWorkerResource(
-           (*iter)->data(), i->worker_route_id(), i->url(), i->name()));
+           iter.GetData(), i->worker_route_id(), i->url(), i->name()));
     }
   }