PPAPI: Refactor renderer side of browser host creation

chrome/renderer/pepper/pepper_flash_drm_renderer_host.h

Index: chrome/renderer/pepper/pepper_flash_drm_renderer_host.h
diff --git a/chrome/renderer/pepper/pepper_flash_drm_renderer_host.h b/chrome/renderer/pepper/pepper_flash_drm_renderer_host.h
index cc06d382721fbeac7afa6c477fc97902145aaf84..695d6cdb652ddc87c1a195434542bb4d28ebab60 100644
--- a/chrome/renderer/pepper/pepper_flash_drm_renderer_host.h
+++ b/chrome/renderer/pepper/pepper_flash_drm_renderer_host.h
@@ -18,6 +18,12 @@ namespace content {
 class RendererPpapiHost;
 }
 
+namespace ppapi {
+namespace proxy {
+struct CompletedBrowserResourceHosts;
+}
+}
+
 // TODO(raymes): This is only needed until we move FileRef resources to the
 // browser. After that, get rid of this class altogether.
 class PepperFlashDRMRendererHost : public ppapi::host::ResourceHost {
@@ -38,7 +44,7 @@ class PepperFlashDRMRendererHost : public ppapi::host::ResourceHost {
       const ppapi::host::ReplyMessageContext& reply_context,
       const base::FilePath& external_path,
       int renderer_pending_host_id,
-      const std::vector<int>& browser_pending_host_ids);
+      const ppapi::proxy::CompletedBrowserResourceHosts& browser_hosts);
 
   // Non-owning pointer.
   content::RendererPpapiHost* renderer_ppapi_host_;