Create top-level separate targets for browser and child dlls

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 122f557fceb8df1e5b0148bee60f17a4ee1ce194..f5ff195d57a3c1055afa21c62cc513115dfe39da 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -938,9 +938,9 @@
     # to get incremental linking to be faster in debug builds.
     'incremental_chrome_dll%': '0',
 
-    # Experimental setting to break chrome.dll in to multiple parts (currently
-    # two, split primarily along browser/render lines).
-    'chrome_split_dll%': '0',
+    # Experimental setting to break chrome.dll into multiple pieces based on
+    # process type.
+    'chrome_multiple_dll%': '0',
 
     # The default settings for third party code for treating
     # warnings-as-errors. Ideally, this would not be required, however there
@@ -1868,11 +1868,8 @@
           '<(DEPTH)/base/allocator/allocator.gyp:type_profiler',
         ],
       }],
-      ['chrome_split_dll', {
-        'variables': {
-          'chrome_split_dll': '<!(python <(DEPTH)/tools/win/split_link/check_installed.py)',
-        },
-        'defines': ['CHROME_SPLIT_DLL'],
+      ['chrome_multiple_dll', {
+        'defines': ['CHROME_MULTIPLE_DLL'],
       }],
       ['OS=="linux" and clang==1 and host_arch=="ia32"', {
         # TODO(dmikurube): Remove -Wno-sentinel when Clang/LLVM is fixed.