[perf waterfall] Set detailed dimensions for win-10-perf

R=hypan@google.com, johnw@chromium.org, sadrul@chromium.org

Bug: 996830
Change-Id: I0e9e7f33818aa3278166e81b6580c699f45e1b3a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1765997
Commit-Queue: Caleb Rouleau <crouleau@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Auto-Submit: Caleb Rouleau <crouleau@chromium.org>
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#689634}

testing/buildbot/chromium.perf.json

@@ -2138,8 +2138,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }
@@ -2176,8 +2176,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }
@@ -2214,8 +2214,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }
@@ -2252,8 +2252,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }
@@ -2290,8 +2290,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }
@@ -2332,8 +2332,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": null,
-              "os": "Windows-10",
+              "gpu": "8086:5912-23.20.16.4877",
+              "os": "Windows-10-16299.309",
               "pool": "chrome.tests.perf",
               "synthetic_product_name": "OptiPlex 7050 (Dell Inc.)"
             }

tools/perf/core/perf_data_generator.py

@@ -582,11 +582,12 @@ BUILDERS = {
     'target_bits': 64,
     'dimension': {
       'pool': 'chrome.tests.perf',
-      # TODO(crbug.com/966238): Add more specific windows version.
-      'os': 'Windows-10',
-      # TODO(crbug.com/971204): Explicitly set the gpu to None to make
-      # chromium_swarming recipe_module ignore this dimension.
-      'gpu': None,
+      # Explicitly set GPU driver version and Windows OS version such
+      # that we can be informed if this
+      # version ever changes or becomes inconsistent. It is important
+      # that bots are homogeneous. See crbug.com/988045 for history.
+      'os': 'Windows-10-16299.309',
+      'gpu': '8086:5912-23.20.16.4877',
       'synthetic_product_name': 'OptiPlex 7050 (Dell Inc.)'
     },
   },