Resubmit "Add an UMA metric to track whether running on a tablet".

base/base.gyp

 # Copyright (c) 2012 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': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 137 matching lines @@
                 'NO_TCMALLOC',
               ],
               'direct_dependent_settings': {
                 'defines': [
                   'NO_TCMALLOC',
                 ],
               },
             }],
           ],
         }],
+        ['OS == "win"', {
+          # Specify delayload for base.dll.
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'DelayLoadDLLs': [
+                'powrprof.dll',
+              ],
+              'AdditionalDependencies': [
+                'powrprof.lib',
+              ],
+            },
+          },
+          # Specify delayload for components that link with base.lib.
+          'all_dependent_settings': {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'DelayLoadDLLs': [
+                  'powrprof.dll',
+                ],
+                'AdditionalDependencies': [
+                  'powrprof.lib',
+                ],
+              },
+            },
+          },
+        }],
         ['OS == "mac" or (OS == "ios" and _toolset == "host")', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AppKit.framework',
               '$(SDKROOT)/System/Library/Frameworks/ApplicationServices.framework',
               '$(SDKROOT)/System/Library/Frameworks/Carbon.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreFoundation.framework',
               '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
               '$(SDKROOT)/System/Library/Frameworks/IOKit.framework',
               '$(SDKROOT)/System/Library/Frameworks/Security.framework',
@@ skipping 884 matching lines @@
               'msvs_target_platform': 'x64',
             },
           },
           'conditions': [
             ['component == "shared_library"', {
               'sources!': [
                 'debug/debug_on_start_win.cc',
               ],
             }],
           ],
+          # Specify delayload for base_win64.dll.
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'DelayLoadDLLs': [
+                'powrprof.dll',
+              ],
+              'AdditionalDependencies': [
+                'powrprof.lib',
+              ],
+            },
+          },
+          # Specify delayload for components that link with base_win64.lib.
+          'all_dependent_settings': {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'DelayLoadDLLs': [
+                  'powrprof.dll',
+                ],
+                'AdditionalDependencies': [
+                  'powrprof.lib',
+                ],
+              },
+            },
+          },
           # TODO(rvargas): Bug 78117. Remove this.
           'msvs_disabled_warnings': [
             4244,
             4996,
             4267,
           ],
           'sources': [
             'third_party/xdg_user_dirs/xdg_user_dir_lookup.cc',
             'third_party/xdg_user_dirs/xdg_user_dir_lookup.h',
             'async_socket_io_handler.h',
@@ skipping 376 matching lines @@
             'base_unittests.isolate',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }