Task manager should support Idle Wakeups on Windows

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index ac9600385fa1824036f9456c4b9947691641f299..96e2e160c698794f553c36ab03313eaecf3cf616 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -3151,6 +3151,8 @@
       'browser/task_management/providers/web_contents/web_contents_tags_manager.h',
       'browser/task_management/providers/web_contents/web_contents_task_provider.cc',
       'browser/task_management/providers/web_contents/web_contents_task_provider.h',
+      'browser/task_management/sampling/shared_sampler.h',
+      'browser/task_management/sampling/shared_sampler.cc',
       'browser/task_management/sampling/task_group.cc',
       'browser/task_management/sampling/task_group.h',
       'browser/task_management/sampling/task_group_sampler.cc',
@@ -3200,6 +3202,9 @@
       'browser/task_management/providers/arc/arc_process_task_provider.cc',
       'browser/task_management/providers/arc/arc_process_task_provider.h',
     ],
+    'chrome_browser_task_manager_win_sources': [

[ncarter (slow), 2016/07/28 21:37:27]

I don't think you need this -- I think you can just put it in the
chrome_browser_task_manager_sources list without any conditionals.

If a file in the main list has a platform suffix like _win.cc or _posix.cc, it's
supposed to be automatically excluded from other platforms. This is thanks to
the common rules in:
https://cs.chromium.org/chromium/src/build/filename_rules.gypi?q=_posix+file:...

[stanisc, 2016/07/28 22:38:44]

That's neat! Will fix this.

[stanisc, 2016/08/01 22:34:27]

Done.

+      'browser/task_management/sampling/shared_sampler_win.cc',
+    ],
     'chrome_browser_themes_sources': [
       'browser/sync/glue/theme_data_type_controller.cc',
       'browser/sync/glue/theme_data_type_controller.h',
@@ -3615,6 +3620,11 @@
                 '<@(chrome_browser_old_task_manager_cocoa_sources)'
               ],
             }],
+            ['OS=="win"', {
+              'sources': [
+                '<@(chrome_browser_task_manager_win_sources)'
+              ],
+            }],
           ],
         }],
         ['enable_media_router==1', {