[AboutPage] Add search tag for "Copy build details" setting

Adds a string for "Copy build details" and loads that setting in the
About page's search concepts.

Bug: 1116553
Change-Id: Ib75e1c809fe146554a57a7a1a6dc9bf42ee6dce8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2429311Reviewed-by: Regan Hsu <hsuregan@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Daniel Classon <dclasson@google.com>
Cr-Commit-Position: refs/heads/master@{#810468}

chrome/app/os_settings_search_tag_strings.grdp

@@ -1096,6 +1096,9 @@
   </message>
   <message name="IDS_OS_SETTINGS_TAG_ABOUT_CHROME_OS_CHANNEL" desc="Text for search result item which, when clicked, navigates the user to detailed build information settings, with a button to change to another channel (stable vs. beta vs. dev).">
     Change channel
+  </message>
+    <message name="IDS_OS_SETTINGS_TAG_ABOUT_CHROME_OS_COPY_DETAILED_BUILD" desc="Text for search result item which, when clicked, navigates the user to detailed build information settings, with a button to copy the build details (e.g., OS version number) to the clipboard.">
+    Copy build details
   </message>
   <message name="IDS_OS_SETTINGS_TAG_ABOUT_OS_UPDATE" desc="Text for search result item which, when clicked, navigates the user to 'About Chrome OS' settings, with a section to check for the latest OS update.">
     Check for update

chrome/app/os_settings_search_tag_strings_grdp/IDS_OS_SETTINGS_TAG_ABOUT_CHROME_OS_COPY_DETAILED_BUILD.png.sha1

+3bfa1abceb3094a6dfe19dd8e6d824b12d69694a
\ No newline at end of file

chrome/browser/ui/webui/settings/chromeos/about_section.cc

@@ -66,6 +66,12 @@ const std::vector<SearchConcept>& GetAboutSearchConcepts() {
        mojom::SearchResultDefaultRank::kMedium,
        mojom::SearchResultType::kSetting,
        {.setting = mojom::Setting::kChangeChromeChannel}},
+      {IDS_OS_SETTINGS_TAG_ABOUT_CHROME_OS_COPY_DETAILED_BUILD,
+       mojom::kDetailedBuildInfoSubpagePath,
+       mojom::SearchResultIcon::kChrome,
+       mojom::SearchResultDefaultRank::kMedium,
+       mojom::SearchResultType::kSetting,
+       {.setting = mojom::Setting::kCopyDetailedBuildInfo}},
       {IDS_OS_SETTINGS_TAG_ABOUT_OS_UPDATE,
        mojom::kAboutChromeOsDetailsSubpagePath,
        mojom::SearchResultIcon::kChrome,