Move Tuple to base namespace.

content/renderer/render_frame_proxy.cc

Index: content/renderer/render_frame_proxy.cc
diff --git a/content/renderer/render_frame_proxy.cc b/content/renderer/render_frame_proxy.cc
index 54d8085ac5b3d49dbb44e3df4f0646e361ba50d8..68c405bf759ade217b50ecdc5a6d494d859674e9 100644
--- a/content/renderer/render_frame_proxy.cc
+++ b/content/renderer/render_frame_proxy.cc
@@ -246,7 +246,7 @@ void RenderFrameProxy::OnCompositorFrameSwapped(const IPC::Message& message) {
     return;
 
   scoped_ptr<cc::CompositorFrame> frame(new cc::CompositorFrame);
-  get<0>(param).frame.AssignTo(frame.get());
+  base::get<0>(param).frame.AssignTo(frame.get());
 
   if (!compositing_helper_.get()) {
     compositing_helper_ =
@@ -255,10 +255,10 @@ void RenderFrameProxy::OnCompositorFrameSwapped(const IPC::Message& message) {
   }
   compositing_helper_->OnCompositorFrameSwapped(
       frame.Pass(),
-      get<0>(param).producing_route_id,
-      get<0>(param).output_surface_id,
-      get<0>(param).producing_host_id,
-      get<0>(param).shared_memory_handle);
+      base::get<0>(param).producing_route_id,
+      base::get<0>(param).output_surface_id,
+      base::get<0>(param).producing_host_id,
+      base::get<0>(param).shared_memory_handle);
 }
 
 void RenderFrameProxy::OnDisownOpener() {