Convert the pp::proxy namespace to the ppapi::proxy namespace.

ppapi/proxy/plugin_resource_tracker_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
 #include "base/process.h"
 #include "ppapi/proxy/mock_resource.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppapi_proxy_test.h"
 
-using ppapi::HostResource;
-
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 namespace {
 
 // Object so we know when a resource has been released.
 class TrackedMockResource : public MockResource {
  public:
   TrackedMockResource(const HostResource& serialized)
       : MockResource(serialized) {
     tracked_alive_count++;
@@ skipping 34 matching lines @@
   EXPECT_EQ(plugin_resource,
             resource_tracker().PluginResourceForHostResource(serialized));
 
   // Releasing the resource should have freed it.
   resource_tracker().ReleaseResource(plugin_resource);
   EXPECT_EQ(0, TrackedMockResource::tracked_alive_count);
   EXPECT_EQ(0, resource_tracker().PluginResourceForHostResource(serialized));
 }
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi