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

content/browser/plugin_process_host.h

Index: content/browser/plugin_process_host.h
===================================================================
--- content/browser/plugin_process_host.h	(revision 118420)
+++ content/browser/plugin_process_host.h	(working copy)
@@ -14,13 +14,17 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
-#include "content/browser/browser_child_process_host.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/browser_child_process_host_delegate.h"
+#include "content/public/browser/browser_child_process_host_iterator.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "webkit/plugins/webplugininfo.h"
 #include "ui/gfx/native_widget_types.h"
 
+class BrowserChildProcessHost;
+
 namespace content {
 class ResourceContext;
 }
@@ -41,7 +45,9 @@
 // starting the plugin process when a plugin is created that doesn't already
 // have a process.  After that, most of the communication is directly between
 // the renderer and plugin processes.
-class CONTENT_EXPORT PluginProcessHost : public BrowserChildProcessHost {
+class CONTENT_EXPORT PluginProcessHost
+    : public content::BrowserChildProcessHostDelegate,
+      public IPC::Message::Sender {
  public:
   class Client {
    public:
@@ -65,6 +71,9 @@
   PluginProcessHost();
   virtual ~PluginProcessHost();
 
+  // IPC::Message::Sender implementation:
+  virtual bool Send(IPC::Message* message) OVERRIDE;
+
   // Initialize the new plugin process, returning true on success. This must
   // be called before the object can be used.
   bool Init(const webkit::WebPluginInfo& info);
@@ -169,7 +178,17 @@
   bool plugin_cursor_visible_;
 #endif
 
+  scoped_ptr<BrowserChildProcessHost> process_;
+
   DISALLOW_COPY_AND_ASSIGN(PluginProcessHost);
 };
 
+class PluginProcessHostIterator
+    : public content::BrowserChildProcessHostTypeIterator<PluginProcessHost> {
+ public:
+  PluginProcessHostIterator()
+      : content::BrowserChildProcessHostTypeIterator<PluginProcessHost>(
+          content::PROCESS_TYPE_PLUGIN) {}
+};
+
 #endif  // CONTENT_BROWSER_PLUGIN_PROCESS_HOST_H_