Split renderer.lib on Windows to avoid files larger than 2GB.

content/renderer/BUILD.gn

Index: content/renderer/BUILD.gn
diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
index 3a28c2dd4b3ddce5c7b751ee35c409b395409127..3ba70c8842314ecac159bad7bea7e71869664985 100644
--- a/content/renderer/BUILD.gn
+++ b/content/renderer/BUILD.gn
@@ -4,6 +4,7 @@
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
+import("//build/split_static_library.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
@@ -13,7 +14,12 @@ import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 if (is_component_build) {
   link_target_type = "source_set"
 } else {
-  link_target_type = "static_library"
+  if (is_win) {
+    # Can be too large for some windows tools if not split.
+    link_target_type = "split_static_library"
+  } else {
+    link_target_type = "static_library"

[scottmg, 2017/01/10 16:09:21]

Can you make this like browser
https://cs.chromium.org/chromium/src/chrome/browser/BUILD.gn?rcl=0&l=59 so the
type is always split_static_library?

[Daniel Bratell, 2017/01/10 20:15:50]

Done.

+  }
 }
 target(link_target_type, "renderer") {
   # Only the public target should depend on this. All other targets (even
@@ -384,6 +390,11 @@ target(link_target_type, "renderer") {
     "websharedworker_proxy.h",
   ]
 
+  if (is_win && !is_component_build) {

[scottmg, 2017/01/10 17:51:40]

If (per the bug) LTCG is mostly what makes this happen, then maybe use 

  if (is_win && is_official_build) {

to also match the browser.lib one.

[Daniel Bratell, 2017/01/10 20:15:50]

Done.

+    split_count = 2  # In certain configurations a full renderer.lib can
+                     # be 2+ GB which breaks some Windows tools.
+  }
+
   configs += [
     "//content:content_implementation",
     "//build/config/compiler:no_size_t_to_int_warning",