tools/gn: Fix more "propogated" typos.

tools/gn/target.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/target.h"
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "tools/gn/config_values_extractors.h"
@@ skipping 259 matching lines @@
     // library boundaries.
     //
     // In this case:
     //   EXE -> INTERMEDIATE_SHLIB --[public]--> FINAL_SHLIB
     // The EXE will also link to to FINAL_SHLIB. The public dependeny means
     // that the EXE can use the headers in FINAL_SHLIB so the FINAL_SHLIB
     // will need to appear on EXE's link line.
     //
     // However, if the dependency is private:
     //   EXE -> INTERMEDIATE_SHLIB --[private]--> FINAL_SHLIB
-    // the dependency will not be propogated because INTERMEDIATE_SHLIB is
+    // the dependency will not be propagated because INTERMEDIATE_SHLIB is
     // not granting permission to call functiosn from FINAL_SHLIB. If EXE
     // wants to use functions (and link to) FINAL_SHLIB, it will need to do
     // so explicitly.
     //
     // Static libraries and source sets aren't inherited across shared
     // library boundaries because they will be linked into the shared
     // library.
     inherited_libraries_.AppendPublicSharedLibraries(
         dep->inherited_libraries(), is_public);
   } else if (!dep->IsFinal()) {
@@ skipping 263 matching lines @@
     return;  // Not in output dir, this is OK.
 
   // Tell the scheduler about unknown files. This will be noted for later so
   // the list of files written by the GN build itself (often response files)
   // can be filtered out of this list.
   OutputFile out_file(settings()->build_settings(), source);
   std::set<const Target*> seen_targets;
   if (!EnsureFileIsGeneratedByDependency(this, out_file, true, &seen_targets))
     g_scheduler->AddUnknownGeneratedInput(this, source);
 }