Remove mojo:: part of mojo::shell:: nested namespace in //shell.

shell/android/keyboard_impl.cc

Index: shell/android/keyboard_impl.cc
diff --git a/shell/android/keyboard_impl.cc b/shell/android/keyboard_impl.cc
index 4282348274b342df9d6e7be541de25c9b203334d..cff25fe7a7129ae40a630ddc59b568f2d2b850b7 100644
--- a/shell/android/keyboard_impl.cc
+++ b/shell/android/keyboard_impl.cc
@@ -8,10 +8,9 @@
 #include "base/logging.h"
 #include "jni/Keyboard_jni.h"
 
-namespace mojo {
 namespace shell {
 
-KeyboardImpl::KeyboardImpl(InterfaceRequest<Keyboard> request)
+KeyboardImpl::KeyboardImpl(mojo::InterfaceRequest<Keyboard> request)
     : binding_(this, request.Pass()) {
 }
 
@@ -33,4 +32,3 @@ bool RegisterKeyboardJni(JNIEnv* env) {
 }
 
 }  // namespace shell
-}  // namespace mojo