Improve process launch handle sharing API.

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 0205c0bdefc8cd8603191f5257d6b1ea8a466824..ba56750802b9f3a9f5520a1fbcce8b0359129c45 100644
--- a/android_webview/browser/aw_content_browser_client.cc
+++ b/android_webview/browser/aw_content_browser_client.cc
@@ -485,9 +485,9 @@ content::TracingDelegate* AwContentBrowserClient::GetTracingDelegate() {
 }
 
 void AwContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
-      const base::CommandLine& command_line,
-      int child_process_id,
-      content::FileDescriptorInfo* mappings) {
+    const base::CommandLine& command_line,
+    int child_process_id,
+    content::PosixFileDescriptorInfo* mappings) {
   base::MemoryMappedFile::Region region;
   int fd = ui::GetMainAndroidPackFd(&region);
   mappings->ShareWithRegion(kAndroidWebViewMainPakDescriptor, fd, region);