fix all "class" -> "struct"

src/build.cc

@@ -41,8 +41,7 @@
 namespace {
 
 /// A CommandRunner that doesn't actually run the commands.
-class DryRunCommandRunner : public CommandRunner {
- public:
+struct DryRunCommandRunner : public CommandRunner {
   virtual ~DryRunCommandRunner() {}
 
   // Overridden from CommandRunner:

src/build_log.cc

@@ -167,8 +167,7 @@ void BuildLog::Close() {
   log_file_ = NULL;
 }
 
-class LineReader {
- public:
+struct LineReader {
   explicit LineReader(FILE* file)
     : file_(file), buf_end_(buf_), line_start_(buf_), line_end_(NULL) {
       memset(buf_, 0, sizeof(buf_));

src/clean.h

@@ -27,8 +27,7 @@ struct Node;
 struct Rule;
 struct DiskInterface;
 
-class Cleaner {
- public:
+struct Cleaner {
   /// Build a cleaner object with a real disk interface.
   Cleaner(State* state, const BuildConfig& config);
 

src/disk_interface_test.cc

@@ -25,8 +25,7 @@
 
 namespace {
 
-class DiskInterfaceTest : public testing::Test {
- public:
+struct DiskInterfaceTest : public testing::Test {
   virtual void SetUp() {
     // These tests do real disk accesses, so create a temp dir.
     temp_dir_.CreateAndEnter("Ninja-DiskInterfaceTest");

src/metrics.h

@@ -64,16 +64,18 @@ int64_t GetTimeMillis();
 
 /// A simple stopwatch which returns the time
 /// in seconds since Restart() was called.
-class Stopwatch {
+struct Stopwatch {
  public:
   Stopwatch() : started_(0) {}
 
   /// Seconds since Restart() call.
-  double Elapsed() const { return 1e-6 * static_cast<double>(Now() - started_); }
+  double Elapsed() const {
+    return 1e-6 * static_cast<double>(Now() - started_);
+  }
 
   void Restart() { started_ = Now(); }
 
-private:
+ private:
   uint64_t started_;
   uint64_t Now() const;
 };