Add support for data deps.

tools/gn/toolchain.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/toolchain.h"
 
 #include "base/logging.h"
 
 const char* Toolchain::kToolCc = "cc";
 const char* Toolchain::kToolCxx = "cxx";
 const char* Toolchain::kToolObjC = "objc";
 const char* Toolchain::kToolObjCxx = "objcxx";
 const char* Toolchain::kToolAsm = "asm";
 const char* Toolchain::kToolAlink = "alink";
 const char* Toolchain::kToolSolink = "solink";
-const char* Toolchain::kToolSolinkModule = "solink_module";
 const char* Toolchain::kToolLink = "link";
 const char* Toolchain::kToolStamp = "stamp";
 const char* Toolchain::kToolCopy = "copy";
 
 Toolchain::Tool::Tool() {
 }
 
 Toolchain::Tool::~Tool() {
 }
 
@@ skipping 13 matching lines @@
 
 // static
 Toolchain::ToolType Toolchain::ToolNameToType(const base::StringPiece& str) {
   if (str == kToolCc) return TYPE_CC;
   if (str == kToolCxx) return TYPE_CXX;
   if (str == kToolObjC) return TYPE_OBJC;
   if (str == kToolObjCxx) return TYPE_OBJCXX;
   if (str == kToolAsm) return TYPE_ASM;
   if (str == kToolAlink) return TYPE_ALINK;
   if (str == kToolSolink) return TYPE_SOLINK;
-  if (str == kToolSolinkModule) return TYPE_SOLINK_MODULE;
   if (str == kToolLink) return TYPE_LINK;
   if (str == kToolStamp) return TYPE_STAMP;
   if (str == kToolCopy) return TYPE_COPY;
   return TYPE_NONE;
 }
 
 // static
 std::string Toolchain::ToolTypeToName(ToolType type) {
   switch (type) {
     case TYPE_CC: return kToolCc;
     case TYPE_CXX: return kToolCxx;
     case TYPE_OBJC: return kToolObjC;
     case TYPE_OBJCXX: return kToolObjCxx;
     case TYPE_ASM: return kToolAsm;
     case TYPE_ALINK: return kToolAlink;
     case TYPE_SOLINK: return kToolSolink;
-    case TYPE_SOLINK_MODULE: return kToolSolinkModule;
     case TYPE_LINK: return kToolLink;
     case TYPE_STAMP: return kToolStamp;
     case TYPE_COPY: return kToolCopy;
     default:
       NOTREACHED();
       return std::string();
   }
 }
 
 const Toolchain::Tool& Toolchain::GetTool(ToolType type) const {
   DCHECK(type != TYPE_NONE);
   return tools_[static_cast<size_t>(type)];
 }
 
 void Toolchain::SetTool(ToolType type, const Tool& t) {
   DCHECK(type != TYPE_NONE);
   tools_[static_cast<size_t>(type)] = t;
 }