Adds Build.MANUFACTURER to native BuildInfo wrapper.

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 03dadd99df1f95e50b6447d19995b4f89f7d3390..cef8145fa6a47d0f44f375b25941280dfbbcd98c 100644
--- a/base/android/build_info.h
+++ b/base/android/build_info.h
@@ -40,6 +40,10 @@ class BASE_EXPORT BuildInfo {
     return device_;
   }
 
+  const char* manufacturer() const {
+    return manufacturer_;
+  }
+
   const char* model() const {
     return model_;
   }
@@ -98,6 +102,7 @@ class BASE_EXPORT BuildInfo {
   // std::string.c_str() doesn't guarantee that memory won't be allocated when
   // it is called.
   const char* const device_;
+  const char* const manufacturer_;
   const char* const model_;
   const char* const brand_;
   const char* const android_build_id_;