Rearrange build configurations - make it clearer and allow better support for...

chrome/installer/mini_installer.gyp

 {
   'variables': {
     'version_py': '../../chrome/tools/build/version.py',
     'version_path': '../../chrome/VERSION',
     'lastchange_path': '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
     'msvs_use_common_release': 0,
     'msvs_use_common_linker_extras': 0,
   },
   'conditions': [
@@ skipping 42 matching lines @@
               # TODO(bradnelson): change when vsprops are all in gyp.
               'DelayLoadDLLs': [],
               'EntryPointSymbol': 'MainEntryPoint',
               'GenerateMapFile': 'true',
               'IgnoreAllDefaultLibraries': 'true',
               'OptimizeForWindows98': '1',
               'SubSystem': '2',     # Set /SUBSYSTEM:WINDOWS
             },
           },
           'configurations': {
-            'Debug': {
+            'Debug_Base': {
               'msvs_settings': {
                 'VCCLCompilerTool': {
                   'BasicRuntimeChecks': '0',
                 },
                 # TODO(bradnelson): Add these back to common configuration
                 # when vsprops goes away.
                 'VCLinkerTool': {
                   'AdditionalDependencies': [
                     '"$(VCInstallDir)crt\\src\\intel\\mt_lib\\memset.obj"',
                     '"$(VCInstallDir)crt\\src\\intel\\mt_lib\\P4_memset.obj"',
@@ skipping 109 matching lines @@
       },
     }],
   ],
 }
 
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