Workaround for pdb size being exceeded for Debug non-shared_library builds

chrome/chrome_dll.gypi

Index: chrome/chrome_dll.gypi
diff --git a/chrome/chrome_dll.gypi b/chrome/chrome_dll.gypi
index 169ac1e64771bd972bd8fa9042474138304a7efa..65b70969d82a478cb8547a0aec1e05439442c59a 100644
--- a/chrome/chrome_dll.gypi
+++ b/chrome/chrome_dll.gypi
@@ -68,6 +68,21 @@
           ]
         },
         {
+          # This target is only depended upon on Windows.
+          'target_name': 'chrome_dll_pdb_workaround',
+          'type': 'static_library',
+          'sources': [ 'empty_pdb_workaround.cc' ],
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              # This *in the compile phase* must match the pdb name that's
+              # output by the final link. See empty_pdb_workaround.cc for
+              # more details.
+              'DebugInformationFormat': '3',
+              'ProgramDataBaseFileName': '<(PRODUCT_DIR)/chrome.dll.pdb',
+            },
+          },
+        },
+        {
           'target_name': 'chrome_main_dll',
           'type': 'shared_library',
           'variables': {
@@ -93,6 +108,7 @@
               'dependencies': [
                 # On Windows, link the dependencies (libraries) that make
                 # up actual Chromium functionality into this .dll.
+                'chrome_dll_pdb_workaround',
                 'chrome_resources.gyp:chrome_resources',
                 'chrome_version_resources',
                 '../chrome/chrome_resources.gyp:chrome_unscaled_resources',