[Blimp client] Move client code into blimp::client namespace

blimp/client/compositor/test/dummy_layer_driver.cc

Index: blimp/client/compositor/test/dummy_layer_driver.cc
diff --git a/blimp/client/compositor/test/dummy_layer_driver.cc b/blimp/client/compositor/test/dummy_layer_driver.cc
index 25517299d52e68646321d5bd98f8ba78860fd456..bd9a1ba846610ad50d8be47ce1a886e5d264181b 100644
--- a/blimp/client/compositor/test/dummy_layer_driver.cc
+++ b/blimp/client/compositor/test/dummy_layer_driver.cc
@@ -16,6 +16,7 @@
 #include "ui/gfx/geometry/size.h"
 
 namespace blimp {
+namespace client {
 
 DummyLayerDriver::DummyLayerDriver()
     : layer_(cc::SolidColorLayer::Create(BlimpCompositor::LayerSettings())),
@@ -59,4 +60,5 @@ void DummyLayerDriver::StepAnimation() {
       base::TimeDelta::FromMilliseconds(16));
 }
 
+}  // namespace client
 }  // namespace blimp