Switch to standard integer types in ppapi/.

ppapi/proxy/ppapi_proxy_test.h

Index: ppapi/proxy/ppapi_proxy_test.h
diff --git a/ppapi/proxy/ppapi_proxy_test.h b/ppapi/proxy/ppapi_proxy_test.h
index 897410da6e569fd5fb3a41e6c84db2ad423dfc77..ec9907175fc28f244f61ff8635e35df8e0c645be 100644
--- a/ppapi/proxy/ppapi_proxy_test.h
+++ b/ppapi/proxy/ppapi_proxy_test.h
@@ -2,10 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stdint.h>
+
 #include <map>
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
@@ -146,8 +149,8 @@ class PluginProxyTestHarness : public ProxyTestHarnessBase {
 
     // PluginDispatcher::PluginDelegate implementation.
     std::set<PP_Instance>* GetGloballySeenInstanceIDSet() override;
-    uint32 Register(PluginDispatcher* plugin_dispatcher) override;
-    void Unregister(uint32 plugin_dispatcher_id) override;
+    uint32_t Register(PluginDispatcher* plugin_dispatcher) override;
+    void Unregister(uint32_t plugin_dispatcher_id) override;
 
     // PluginProxyDelegate implementation.
     IPC::Sender* GetBrowserSender() override;