This adds binary data that will be used to test diagnostics mode

chrome/test/data/diagnostics/user/Default/Preferences

+{
+   "browser": {
+      "last_known_google_url": "https://www.google.com/",
+      "last_prompted_google_url": "https://www.google.com/",
+      "window_placement": {
+         "bottom": 1559,
+         "left": 2561,
+         "maximized": false,
+         "right": 3826,
+         "top": 32,
+         "work_area_bottom": 1574,
+         "work_area_left": 0,
+         "work_area_right": 2560,
+         "work_area_top": 27
+      }
+   },
+   "countryid_at_install": 21843,
+   "default_apps_install_state": 3,
+   "default_search_provider": {
+      "alternate_urls": [ "{google:baseURL}#q={searchTerms}", "{google:baseURL}search#q={searchTerms}", "{google:baseURL}webhp#q={searchTerms}" ],
+      "enabled": true,
+      "encodings": "UTF-8",
+      "icon_url": "http://www.google.com/favicon.ico",
+      "id": "2",
+      "instant_url": "{google:baseURL}webhp?sourceid=chrome-instant&{google:RLZ}{google:instantEnabledParameter}{google:instantExtendedEnabledParameter}{google:ntpIsThemedParameter}{google:omniboxStartMarginParameter}ie={inputEncoding}",
+      "keyword": "google.com",
+      "name": "Google",
+      "prepopulate_id": "1",
+      "search_terms_replacement_key": "espv",
+      "search_url": "{google:baseURL}search?q={searchTerms}&{google:RLZ}{google:originalQueryForSuggestion}{google:assistedQueryStats}{google:searchFieldtrialParameter}{google:searchClient}{google:sourceId}{google:instantExtendedEnabledParameter}ie={inputEncoding}",
+      "suggest_url": "{google:baseSuggestURL}search?{google:searchFieldtrialParameter}client=chrome&q={searchTerms}&{google:cursorPosition}{google:zeroPrefixUrl}sugkey={google:suggestAPIKeyParameter}"
+   },
+   "dns_prefetching": {
+      "host_referral_list": [ 2, [ "https://accounts.google.com/", [ "https://accounts.youtube.com/", 2.2733802, "https://ssl.gstatic.com/", 2.2733802 ] ], [ "https://apis.google.com/", [ "https://apis.google.com/", 2.6037003999999997 ] ], [ "https://www.google.com/", [ "https://apis.google.com/", 2.9340205999999998, "https://fonts.googleapis.com/", 2.2733802, "https://ssl.google-analytics.com/", 2.6037003999999997, "https://ssl.gstatic.com/", 2.6037003999999997, "https://themes.googleusercontent.com/", 3.2643407999999994, "https://www.google.com/", 5.576582199999999 ] ] ],
+      "startup_list": [ 1, "http://tools.google.com/", "https://accounts.google.com/", "https://accounts.youtube.com/", "https://clients2.google.com/", "https://clients2.googleusercontent.com/", "https://fonts.googleapis.com/", "https://ssl.google-analytics.com/", "https://ssl.gstatic.com/", "https://www.google.com/", "https://www.gstatic.com/" ]
+   },
+   "extensions": {
+      "alerts": {
+         "initialized": true
+      },
+      "autoupdate": {
+         "next_check": "13019101568349024"
+      },
+      "blacklistupdate": {
+         "lastpingday": "13019036400151151",
+         "version": "0.0.0.149"
+      },
+      "chrome_url_overrides": {
+         "bookmarks": [ "chrome-extension://eemcgdkfndhakfknompkggombfjjjeno/main.html" ]
+      },
+      "last_chrome_version": "28.0.1500.71",
+      "settings": {
+      },
+      "toolbar": [ "amppcaoflpjiofjedecfhmmlekknkpdl" ],
+      "toolbarsize": -1
+   },
+   "net": {
+      "http_server_properties": {
+         "servers": {
+            "accounts.google.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "accounts.youtube.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "apis.google.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "clients2.google.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "clients2.googleusercontent.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "extensionreporter.googleplex.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "fonts.googleapis.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "ssl.google-analytics.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "themes.googleusercontent.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "www.google.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            },
+            "www.gstatic.com:443": {
+               "settings": {
+                  "4": 100
+               },
+               "supports_spdy": true
+            }
+         },
+         "version": 1
+      }
+   },
+   "plugins": {
+      "enabled_internal_pdf3": true,
+      "enabled_nacl": true,
+      "removed_old_component_pepper_flash_settings": true
+   },
+   "profile": {
+      "avatar_index": 0,
+      "content_settings": {
+         "clear_on_exit_migrated": true,
+         "pref_version": 1
+      },
+      "created_by_version": "28.0.1500.71",
+      "exit_type": "Normal",
+      "exited_cleanly": true,
+      "is_managed": false,
+      "local_profile_id": 2081500,
+      "name": "First user"
+   },
+   "session": {
+      "restore_on_startup_migrated": true
+   },
+   "sync_promo": {
+      "startup_count": 1
+   }
+}