Tracing V2: Field number constants for protobuf plugin.

components/tracing/test/proto_zero_generation_unittest.cc

Index: components/tracing/test/proto_zero_generation_unittest.cc
diff --git a/components/tracing/test/proto_zero_generation_unittest.cc b/components/tracing/test/proto_zero_generation_unittest.cc
index 531cadb9e289e0e76ec05caba3fb1463cf27b2eb..cc2be35c03a6d2b089819ce25d41fc613877a1ae 100644
--- a/components/tracing/test/proto_zero_generation_unittest.cc
+++ b/components/tracing/test/proto_zero_generation_unittest.cc
@@ -8,9 +8,24 @@
 namespace tracing {
 namespace proto {
 
+using foo::bar::CamelCaseFields;
+
 TEST(ProtoZeroTest, Simple) {
   // TODO(kraynov) Put tests in the next CL (crbug.com/608721).
 }
 
+TEST(ProtoZeroTest, FieldNumbers) {
+  // Tests camel case conversion as well.
+  EXPECT_EQ(1, CamelCaseFields::kFooBarBazFieldNumber);
+  EXPECT_EQ(2, CamelCaseFields::kBarBazFieldNumber);
+  EXPECT_EQ(3, CamelCaseFields::kMooMooFieldNumber);
+  EXPECT_EQ(4, CamelCaseFields::kURLEncoderFieldNumber);
+  EXPECT_EQ(5, CamelCaseFields::kXMapFieldNumber);
+  EXPECT_EQ(6, CamelCaseFields::kUrLENcoDerFieldNumber);
+  EXPECT_EQ(7, CamelCaseFields::kBigBangFieldNumber);
+  EXPECT_EQ(8, CamelCaseFields::kU2FieldNumber);
+  EXPECT_EQ(9, CamelCaseFields::kBangBigFieldNumber);
+}
+
 }  // namespace proto
 }  // namespace tracing