[Jumbo] Adding jumbo feature to be enable speed up builds

Enable jumbo build in components/rappor/.
Use jumbo build after adding "use_jumbo_build=true" args in GN.

Bug: None
Change-Id: I369479aa5f1215e5e0f2fc23e1546209c41e4aad
Reviewed-on: https://chromium-review.googlesource.com/1203670Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Byoungkwon Ko <codeimpl@gmail.com>
Cr-Commit-Position: refs/heads/master@{#588508}

components/rappor/BUILD.gn

@@ -2,9 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/config/jumbo.gni")
 import("//testing/test.gni")
 
-static_library("rappor") {
+jumbo_static_library("rappor") {
   sources = [
     "bloom_filter.cc",
     "bloom_filter.h",
@@ -48,7 +49,7 @@ static_library("rappor") {
   ]
 }
 
-static_library("rappor_recorder") {
+jumbo_static_library("rappor_recorder") {
   sources = [
     "rappor_recorder_impl.cc",
     "rappor_recorder_impl.h",
@@ -65,7 +66,7 @@ static_library("rappor_recorder") {
   ]
 }
 
-static_library("test_support") {
+jumbo_static_library("test_support") {
   testonly = true
   sources = [
     "test_log_uploader.cc",
@@ -83,7 +84,7 @@ static_library("test_support") {
   ]
 }
 
-source_set("unit_tests") {
+jumbo_source_set("unit_tests") {
   testonly = true
   sources = [
     "bloom_filter_unittest.cc",

components/rappor/public/BUILD.gn

@@ -2,7 +2,9 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("public") {
+import("//build/config/jumbo.gni")
+
+jumbo_source_set("public") {
   sources = [
     "rappor_parameters.h",
     "rappor_service.h",