Restructure contents of blimp/client.

blimp/client/app/android/tab_control_feature_android.h

Index: blimp/client/app/android/tab_control_feature_android.h
diff --git a/blimp/client/session/tab_control_feature_android.h b/blimp/client/app/android/tab_control_feature_android.h
similarity index 83%
rename from blimp/client/session/tab_control_feature_android.h
rename to blimp/client/app/android/tab_control_feature_android.h
index 9cadcecc0fcb9fa3c1c82bf4ddfd709acd2aecde..c5afcbe6f4d800762765ae98070f0dbda5a93055 100644
--- a/blimp/client/session/tab_control_feature_android.h
+++ b/blimp/client/app/android/tab_control_feature_android.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef BLIMP_CLIENT_SESSION_TAB_CONTROL_FEATURE_ANDROID_H_
-#define BLIMP_CLIENT_SESSION_TAB_CONTROL_FEATURE_ANDROID_H_
+#ifndef BLIMP_CLIENT_APP_ANDROID_TAB_CONTROL_FEATURE_ANDROID_H_
+#define BLIMP_CLIENT_APP_ANDROID_TAB_CONTROL_FEATURE_ANDROID_H_
 
 #include "base/android/jni_android.h"
 #include "base/macros.h"
@@ -13,6 +13,7 @@ namespace client {
 
 class TabControlFeature;
 
+// TODO(dtrainor): Document this class.
 class TabControlFeatureAndroid {
  public:
   static bool RegisterJni(JNIEnv* env);
@@ -44,4 +45,4 @@ class TabControlFeatureAndroid {
 }  // namespace client
 }  // namespace blimp
 
-#endif  // BLIMP_CLIENT_SESSION_TAB_CONTROL_FEATURE_ANDROID_H_
+#endif  // BLIMP_CLIENT_APP_ANDROID_TAB_CONTROL_FEATURE_ANDROID_H_