ipc: Rename TakeFileHandleForProcess->TakePlatformFileForTransit.

ipc/ipc_platform_file.h

Index: ipc/ipc_platform_file.h
diff --git a/ipc/ipc_platform_file.h b/ipc/ipc_platform_file.h
index 3d6098332257a87e8d2292fca4022af720e46a03..15807f60b75bd87cb05d7735a568f55d40eb3c84 100644
--- a/ipc/ipc_platform_file.h
+++ b/ipc/ipc_platform_file.h
@@ -61,11 +61,10 @@ IPC_EXPORT PlatformFileForTransit GetPlatformFileForTransit(
     base::PlatformFile file,
     bool close_source_handle);
 
-// Returns a file handle equivalent to |file| that can be used in |process|.
+// Creates a new handle that can be passed through IPC. The result must be
+// passed to the IPC layer as part of a message, or else it will leak.
 // Note that this function takes ownership of |file|.
-IPC_EXPORT PlatformFileForTransit TakeFileHandleForProcess(
-    base::File file,
-    base::ProcessHandle process);
+IPC_EXPORT PlatformFileForTransit TakePlatformFileForTransit(base::File file);
 
 }  // namespace IPC