Implement the gamepad API in the IPC proxy

content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc

Index: content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc
diff --git a/content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc b/content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc
index 8caaaf63f81ef48bac495118e2fc71add3261b80..92e5b7621f21bfde7f04006b7f91f2e0ebac4d94 100644
--- a/content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc
+++ b/content/browser/renderer_host/pepper/browser_ppapi_host_impl.cc
@@ -12,7 +12,8 @@ BrowserPpapiHostImpl::BrowserPpapiHostImpl(
     IPC::Sender* sender,
     const ppapi::PpapiPermissions& permissions)
     : host_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
-      ppapi_host_(sender, &host_factory_, permissions) {
+      ppapi_host_(sender, &host_factory_, permissions),
+      plugin_process_handle_(base::kNullProcessHandle) {
 }
 
 BrowserPpapiHostImpl::~BrowserPpapiHostImpl() {
@@ -34,4 +35,10 @@ ppapi::host::PpapiHost* BrowserPpapiHostImpl::GetPpapiHost() {
   return &ppapi_host_;
 }
 
+base::ProcessHandle BrowserPpapiHostImpl::GetPluginProcessHandle() const {
+  // Handle should previously have been set before use.
+  DCHECK(plugin_process_handle_ != base::kNullProcessHandle);
+  return plugin_process_handle_;
+}
+
 }  // namespace content