Switch base/ registrations to a static class method where appropriate.

base/android/build_info.h

Index: base/android/build_info.h
diff --git a/base/android/build_info.h b/base/android/build_info.h
index 1ee09b950e67f71ddb93b9d7f7bddf2798a93c7d..895bf61c544646c99fcc6aed3552046856decced 100644
--- a/base/android/build_info.h
+++ b/base/android/build_info.h
@@ -69,6 +69,8 @@ class BuildInfo {
 
   void set_java_exception_info(const std::string& info);
 
+  static bool RegisterBindings(JNIEnv* env);
+
  private:
   friend struct BuildInfoSingletonTraits;
 
@@ -91,8 +93,6 @@ class BuildInfo {
   DISALLOW_COPY_AND_ASSIGN(BuildInfo);
 };
 
-bool RegisterBuildInfo(JNIEnv* env);
-
 }  // namespace android
 }  // namespace base