Rename source_prereqs to inputs in the GN build.

tools/gn/target_generator.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_generator.h"
 
 #include "tools/gn/action_target_generator.h"
 #include "tools/gn/binary_target_generator.h"
 #include "tools/gn/build_settings.h"
 #include "tools/gn/config.h"
@@ skipping 145 matching lines @@
   Target::FileList dest_public;
   if (!ExtractListOfRelativeFiles(scope_->settings()->build_settings(), *value,
                                   scope_->GetSourceDir(), &dest_public, err_))
     return;
   target_->public_headers().swap(dest_public);
 }
 
 void TargetGenerator::FillInputs() {
   const Value* value = scope_->GetValue(variables::kInputs, true);
   if (!value) {
-    // Older versions used "source_prereqs". Allow use of this variable until
+    // Older versions used "inputs". Allow use of this variable until
     // all callers are updated.
     // TODO(brettw) remove this eventually.
-    value = scope_->GetValue("source_prereqs", true);
+    value = scope_->GetValue("inputs", true);
 
     if (!value)
       return;
   }
 
   Target::FileList dest_inputs;
   if (!ExtractListOfRelativeFiles(scope_->settings()->build_settings(), *value,
                                   scope_->GetSourceDir(), &dest_inputs, err_))
     return;
   target_->inputs().swap(dest_inputs);
@@ skipping 78 matching lines @@
 
 void TargetGenerator::FillForwardDependentConfigs() {
   const Value* value = scope_->GetValue(
       variables::kForwardDependentConfigsFrom, true);
   if (value) {
     ExtractListOfLabels(*value, scope_->GetSourceDir(),
                         ToolchainLabelForScope(scope_),
                         &target_->forward_dependent_configs(), err_);
   }
 }