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

blimp/client/android/blimp_view.cc

Index: blimp/client/android/blimp_view.cc
diff --git a/blimp/client/android/blimp_view.cc b/blimp/client/android/blimp_view.cc
index 650b51bc9194a34a14ac47e5f9ffb5da00fd89ea..91e5de994f66667b7cb325b0d2ecb0ccde0269ec 100644
--- a/blimp/client/android/blimp_view.cc
+++ b/blimp/client/android/blimp_view.cc
@@ -13,6 +13,7 @@
 #include "ui/gfx/geometry/size.h"
 
 namespace blimp {
+namespace client {
 
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& jobj,
@@ -176,4 +177,5 @@ jboolean BlimpView::OnTouchEvent(JNIEnv* env,
   return compositor_->OnTouchEvent(event);
 }
 
+}  // namespace client
 }  // namespace blimp