Enable jumbo support in media/base

Building //media takes around 23 CPU minutes. A experimental
branch showed that this could be reduced, by using jumbo,
to around 9 CPU minutes. media/base is the second largest part
of media and takes around 3.1 CPU minutes to compile without
jumbo.

This commit enables jumbo for media/base.

Bug: 867350
Change-Id: Ie2dae0a65bfc596b30339712a39cab321e293f48
Reviewed-on: https://chromium-review.googlesource.com/1150037Reviewed-by: Chrome Cunningham (In Paris) <chcunningham@chromium.org>
Commit-Queue: Oscar Johansson <oscarj@opera.com>
Cr-Commit-Position: refs/heads/master@{#578305}

media/base/BUILD.gn

@@ -5,6 +5,7 @@
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
+import("//build/config/jumbo.gni")
 import("//build/config/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
@@ -14,7 +15,7 @@ if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
-source_set("base") {
+jumbo_source_set("base") {
   # Do not expand the visibility here without double-checking with OWNERS, this
   # is a roll-up target which is part of the //media component. Most other DEPs
   # should be using //media and not directly DEP this roll-up target.

media/base/android/BUILD.gn

@@ -4,6 +4,7 @@
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
+import("//build/config/jumbo.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 
@@ -13,7 +14,7 @@ if (is_android) {
   # This is bundled into //media, so all dependencies should be on //media.
   # APK targets that depend on this indirectly, should also
   # depend on :media_java to get the corresponding Java classes.
-  source_set("android") {
+  jumbo_source_set("android") {
     visibility = [
       "//media",
       "//media/filters",

media/base/ipc/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("ipc") {
+import("//build/config/jumbo.gni")
+
+jumbo_source_set("ipc") {
   sources = [
     "media_param_traits.cc",
     "media_param_traits.h",

media/base/mac/BUILD.gn

@@ -2,9 +2,11 @@
 # 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")
+
 assert(is_mac || is_ios)
 
-source_set("mac") {
+jumbo_source_set("mac") {
   # Note: This source_set is depended on only by //media. In the component
   # build, if other component targets also depend on it, multiple copies of
   # the ObjC classes declared in the files below will cause warnings at

media/base/win/BUILD.gn

@@ -2,6 +2,8 @@
 # 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")
+
 assert(is_win)
 
 config("delay_load_mf") {
@@ -12,7 +14,7 @@ config("delay_load_mf") {
   ]
 }
 
-component("win") {
+jumbo_component("win") {
   output_name = "media_win_util"
   defines = [ "MF_INITIALIZER_IMPLEMENTATION" ]
   set_sources_assignment_filter([])