Copy cdb.exe into telemetry_chrome_test's isolate.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 38a00b8bd29851a2b38614ae83eff2b4e59c1646..ffd3c6a7560ca6afacc78fcada37db1444936753 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -3259,7 +3259,8 @@
             }],
             ['OS=="mac" or OS=="win"', {
               'dependencies': [
-                # TODO(kbr): port this dependency to GN.
+                # TODO(kbr): port these dependencies to GN.
+                'copy_cdb_to_output',
                 '../third_party/crashpad/crashpad/tools/tools.gyp:crashpad_database_util',
               ],
             }],
@@ -3419,6 +3420,34 @@
         },
       ],
       'conditions': [
+        ['OS=="win"', {
+          'targets': [
+            {
+              # TODO(kbr): port this target to GN.
+              'target_name': 'copy_cdb_to_output',
+              'type': 'none',
+              'actions': [
+                {
+                  'action_name': 'copy_cdb',
+                  'inputs': [
+                    '<(DEPTH)/build/win/copy_cdb_to_output.py',
+                  ],
+                  'outputs': [
+                    '<(PRODUCT_DIR)/cdb.exe',
+                    '<(PRODUCT_DIR)/dbgeng.dll',
+                    '<(PRODUCT_DIR)/dbghelp.dll',
+                    '<(PRODUCT_DIR)/dbgmodel.dll',
+                  ],
+                  'action': ['python',
+                             '<(DEPTH)/build/win/copy_cdb_to_output.py',
+                             '<(PRODUCT_DIR)',
+                             '<(target_arch)'],
+                  'message': 'Copying cdb.exe to <(PRODUCT_DIR)',
+                },
+              ],
+            },
+          ],
+        }],
         ['archive_gpu_tests==1', {
           'targets': [
             {