[Merge M54] Propagate common resources to WebView child process

android_webview/browser/aw_content_browser_client.cc

Index: android_webview/browser/aw_content_browser_client.cc
diff --git a/android_webview/browser/aw_content_browser_client.cc b/android_webview/browser/aw_content_browser_client.cc
index 122c007d3a1409fd5bb57ef3a4e5821f36e0a79b..6dfe12a76681b57d55573447724b3f66d7dabbb8 100644
--- a/android_webview/browser/aw_content_browser_client.cc
+++ b/android_webview/browser/aw_content_browser_client.cc
@@ -483,6 +483,10 @@ void AwContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
       &(*regions)[kAndroidWebViewMainPakDescriptor]);
   mappings->Share(kAndroidWebViewMainPakDescriptor, fd);
 
+  fd = ui::GetCommonResourcesPackFd(
+      &(*regions)[kAndroidWebView100PercentPakDescriptor]);
+  mappings->Share(kAndroidWebView100PercentPakDescriptor, fd);
+
   fd = ui::GetLocalePackFd(&(*regions)[kAndroidWebViewLocalePakDescriptor]);
   mappings->Share(kAndroidWebViewLocalePakDescriptor, fd);