Revert overly-wide change in dependency chain. Now the new build step will only be enabled when ...

chrome/chrome_dll_syzygy.gypi

 # Copyright (c) 2011 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.
 {
   'variables': {
     'optimize_with_syzygy%': 0,
   },
   'conditions': [
-    ['OS=="win"', {
+    ['OS=="win" and optimize_with_syzygy==1', {
+      # Optimize the initial chrome DLL file, placing the optimized
+      # output and corresponding PDB file into the product directory.
+      # If fastbuild!=0 then no PDB files are generated by the build
+      # and the syzygy optimizations cannot run (they use the PDB
+      # information to properly understand the DLLs contents), so
+      # syzygy optimization cannot be performed.
       'targets': [
         {
           'target_name': 'chrome_dll',
           'type': 'none',
           'sources' : [],
           'dependencies': [
             'chrome_dll_initial',
             'chrome',
           ],
-          'conditions': [
-            ['optimize_with_syzygy==1 and fastbuild==0', {
-              # Optimize the initial chrome DLL file, placing the optimized
-              # output and corresponding PDB file into the product directory.
-              # If fastbuild!=0 then no PDB files are generated by the build
-              # and the syzygy optimizations cannot run (they use the PDB
-              # information to properly understand the DLLs contents), so
-              # syzygy optimization cannot be performed.
-              'actions': [
-                {
-                  'action_name': 'Optimize Chrome binaries with syzygy',
-                  'msvs_cygwin_shell': 0,
-                  'inputs': [
-                    '<(PRODUCT_DIR)\\initial\\chrome.dll',
-                    '<(PRODUCT_DIR)\\initial\\chrome_dll.pdb',
-                  ],
-                  'outputs': [
-                    '<(PRODUCT_DIR)\\chrome.dll',
-                    '<(PRODUCT_DIR)\\chrome_dll.pdb',
-                  ],
-                  'action': [
-                    '<(DEPTH)\\third_party\\syzygy\\binaries\\optimize.bat',
-                    '--verbose',
-                    '--input-dir="<(PRODUCT_DIR)"',
-                    '--input-dll="<(PRODUCT_DIR)\\initial\\chrome.dll"',
-                    '--input-pdb="<(PRODUCT_DIR)\\initial\\chrome_dll.pdb"',
-                    '--output-dir="<(INTERMEDIATE_DIR)\\optimized"',
-                    '--copy-to="<(PRODUCT_DIR)"',
-                  ],
-                },
+          'actions': [
+            {
+              'action_name': 'Optimize Chrome binaries with syzygy',
+              'msvs_cygwin_shell': 0,
+              'inputs': [
+                '<(PRODUCT_DIR)\\initial\\chrome.dll',
+                '<(PRODUCT_DIR)\\initial\\chrome_dll.pdb',
               ],
-            }, {  # optimize_with_syzygy!=1 or fastbuild!=0           
-              # Copy the chrome DLL and PDB files into the product directory.
-              # If fastbuild!= 0 then there is no PDB file to copy.
-              'copies': [
-                {
-                  'destination': '<(PRODUCT_DIR)',
-                  'conditions': [
-                    ['fastbuild==0', {
-                      'files': [
-                        '<(PRODUCT_DIR)\\initial\\chrome.dll',
-                        '<(PRODUCT_DIR)\\initial\\chrome_dll.pdb',
-                      ],
-                    }, {
-                      'files': [
-                        '<(PRODUCT_DIR)\\initial\\chrome.dll',
-                      ],
-                    }],
-                  ],
-                },
+              'outputs': [
+                '<(PRODUCT_DIR)\\chrome.dll',
+                '<(PRODUCT_DIR)\\chrome_dll.pdb',
               ],
-            }],  # optimize_with_syzygy==0 or fastbuild==1
-          ],  # conditions
+              'action': [
+                '<(DEPTH)\\third_party\\syzygy\\binaries\\optimize.bat',
+                '--verbose',
+                '--input-dir="<(PRODUCT_DIR)"',
+                '--input-dll="<(PRODUCT_DIR)\\initial\\chrome.dll"',
+                '--input-pdb="<(PRODUCT_DIR)\\initial\\chrome_dll.pdb"',
+                '--output-dir="<(INTERMEDIATE_DIR)\\optimized"',
+                '--copy-to="<(PRODUCT_DIR)"',
+              ],
+            },
+          ],
         },
       ],
     }],
   ],
 }