update_engine: fixed warnings from cpplint

Fixed all the cpplint warnings in update engine.

BUG=None
TEST=Unit tests still pass.

Change-Id: I285ae858eec8abe0b26ff203b99a42a200ceb71c
Reviewed-on: https://chromium-review.googlesource.com/204027
Reviewed-by: Alex Vakulenko <[email protected]>
Tested-by: Alex Vakulenko <[email protected]>
Commit-Queue: Alex Vakulenko <[email protected]>
diff --git a/download_action.cc b/download_action.cc
index 6f4811a..0d4354b 100644
--- a/download_action.cc
+++ b/download_action.cc
@@ -68,7 +68,7 @@
 
   if (!p2p_manager->FileShare(p2p_file_id_, install_plan_.payload_size)) {
     LOG(ERROR) << "Unable to share file via p2p";
-    CloseP2PSharingFd(true); // delete p2p file
+    CloseP2PSharingFd(true);  // delete p2p file
     return false;
   }
 
@@ -78,7 +78,7 @@
   p2p_sharing_fd_ = open(path.value().c_str(), O_WRONLY);
   if (p2p_sharing_fd_ == -1) {
     PLOG(ERROR) << "Error opening file " << path.value();
-    CloseP2PSharingFd(true); // Delete p2p file.
+    CloseP2PSharingFd(true);  // Delete p2p file.
     return false;
   }
 
@@ -89,7 +89,7 @@
   // the process-wide umask is set to 0700 in main.cc.)
   if (fchmod(p2p_sharing_fd_, 0644) != 0) {
     PLOG(ERROR) << "Error setting mode 0644 on " << path.value();
-    CloseP2PSharingFd(true); // Delete p2p file.
+    CloseP2PSharingFd(true);  // Delete p2p file.
     return false;
   }
 
@@ -120,14 +120,14 @@
   struct stat statbuf;
   if (fstat(p2p_sharing_fd_, &statbuf) != 0) {
     PLOG(ERROR) << "Error getting file status for p2p file";
-    CloseP2PSharingFd(true); // Delete p2p file.
+    CloseP2PSharingFd(true);  // Delete p2p file.
     return;
   }
   if (statbuf.st_size < file_offset) {
     LOG(ERROR) << "Wanting to write to file offset " << file_offset
                << " but existing p2p file is only " << statbuf.st_size
                << " bytes.";
-    CloseP2PSharingFd(true); // Delete p2p file.
+    CloseP2PSharingFd(true);  // Delete p2p file.
     return;
   }
 
@@ -135,7 +135,7 @@
   if (cur_file_offset != static_cast<off_t>(file_offset)) {
     PLOG(ERROR) << "Error seeking to position "
                 << file_offset << " in p2p file";
-    CloseP2PSharingFd(true); // Delete p2p file.
+    CloseP2PSharingFd(true);  // Delete p2p file.
   } else {
     // OK, seeking worked, now write the data
     ssize_t bytes_written = write(p2p_sharing_fd_, data, length);
@@ -143,7 +143,7 @@
       PLOG(ERROR) << "Error writing "
                   << length << " bytes at file offset "
                   << file_offset << " in p2p file";
-      CloseP2PSharingFd(true); // Delete p2p file.
+      CloseP2PSharingFd(true);  // Delete p2p file.
     }
   }
 }
@@ -238,7 +238,7 @@
   if (delegate_) {
     delegate_->SetDownloadStatus(false);  // Set to inactive.
   }
-  CloseP2PSharingFd(false); // Keep p2p file.
+  CloseP2PSharingFd(false);  // Keep p2p file.
   // Terminates the transfer. The action is terminated, if necessary, when the
   // TransferTerminated callback is received.
   http_fetcher_->TerminateTransfer();
@@ -323,4 +323,4 @@
   }
 }
 
-};  // namespace {}
+}  // namespace chromeos_update_engine