Enable incremental linking in release component builds

third_party/WebKit/Source/core/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/chromecast_build.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/bindings/modules/v8/generated.gni")
@@ skipping 162 matching lines @@
     "//third_party/WebKit/Source/core/svg",
     "//third_party/WebKit/Source/core/timing",
     "//third_party/WebKit/Source/core/workers",
     "//third_party/WebKit/Source/core/xml",
     "//third_party/WebKit/Source/core/xmlhttprequest",
   ]
 
   if (is_win && is_debug && is_component_build && current_cpu == "x64") {
     # Incremental linking doesn't work on this target in debug mode for
     # 64-bit builds - the .ilk file gets too large and the incremental
-    # link silently fails. Therefore 32-bit builds should be used for
-    # fastest incremental build performance.
+    # link silently fails. Therefore 32-bit builds or 64-bit release builds
+    # (component either way) should be used for fastest incremental build
+    # performance. VC++ bug filed for 64-bit debug incremental link failures:
+    # https://connect.microsoft.com/VisualStudio/feedback/details/2846790
     configs -= [ "//build/config/win:default_incremental_linking" ]
     configs += [ "//build/config/win:no_incremental_linking" ]
   }
 
   public_configs = [ ":core_include_dirs" ]
 
   if (is_mac) {
     libs = [
       "AppKit.framework",
       "Carbon.framework",
@@ skipping 1039 matching lines @@
   sources = [
     "html/parser/HTMLPreloadScannerFuzzer.cpp",
     "html/parser/TextResourceDecoderForFuzzing.h",
   ]
   seed_corpus = "//third_party/WebKit/LayoutTests/fast/parser"
   deps = [
     ":core",
     "../platform:blink_fuzzer_test_support",
   ]
 }