Remove tools/clang (this will break things temporarily).

tools/clang/blink_gc_plugin/JsonWriter.h

Index: tools/clang/blink_gc_plugin/JsonWriter.h
diff --git a/tools/clang/blink_gc_plugin/JsonWriter.h b/tools/clang/blink_gc_plugin/JsonWriter.h
deleted file mode 100644
index 3fe79103bbadbadc21770b707584ba1648462ed4..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/JsonWriter.h
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef TOOLS_BLINK_GC_PLUGIN_JSON_WRITER_H_
-#define TOOLS_BLINK_GC_PLUGIN_JSON_WRITER_H_
-
-#include "llvm/Support/raw_ostream.h"
-
-// Helper to write information for the points-to graph.
-class JsonWriter {
- public:
-  static JsonWriter* from(std::unique_ptr<llvm::raw_ostream> os) {
-    return os ? new JsonWriter(std::move(os)) : 0;
-  }
-  void OpenList() {
-    Separator();
-    *os_ << "[";
-    state_.push(false);
-  }
-  void OpenList(const std::string key) {
-    Write(key);
-    *os_ << ":";
-    OpenList();
-  }
-  void CloseList() {
-    *os_ << "]";
-    state_.pop();
-  }
-  void OpenObject() {
-    Separator();
-    *os_ << "{";
-    state_.push(false);
-  }
-  void CloseObject() {
-    *os_ << "}\n";
-    state_.pop();
-  }
-  void Write(const size_t val) {
-    Separator();
-    *os_ << val;
-  }
-  void Write(const std::string val) {
-    Separator();
-    *os_ << "\"" << val << "\"";
-  }
-  void Write(const std::string key, const size_t val) {
-    Separator();
-    *os_ << "\"" << key << "\":" << val;
-  }
-  void Write(const std::string key, const std::string val) {
-    Separator();
-    *os_ << "\"" << key << "\":\"" << val << "\"";
-  }
- private:
-  JsonWriter(std::unique_ptr<llvm::raw_ostream> os) : os_(std::move(os)) {}
-  void Separator() {
-    if (state_.empty())
-      return;
-    if (state_.top()) {
-      *os_ << ",";
-      return;
-    }
-    state_.top() = true;
-  }
-  std::unique_ptr<llvm::raw_ostream> os_;
-  std::stack<bool> state_;
-};
-
-#endif // TOOLS_BLINK_GC_PLUGIN_JSON_WRITER_H_