chrome-53.0.2785.143-wsl-feb-23.patch

diff --git a/.gitignore b/.gitignore
index e1dd1a7..c806df6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,6 +51,10 @@ tags
 Thumbs.db
 v8.log
 vs-chromium-project.txt
+# WSL diff additions for git performance
+/v8/
+/build/
+*.rej
 # Settings directories for eclipse
 /.externalToolBuilders/
 /.settings/
diff --git a/base/debug/proc_maps_linux.cc b/base/debug/proc_maps_linux.cc
index 0bb44b4..e776e22 100644
--- a/base/debug/proc_maps_linux.cc
+++ b/base/debug/proc_maps_linux.cc
@@ -151,11 +151,15 @@ bool ParseProcMaps(const std::string& input,
     else if (permissions[2] != '-')
       return false;
 
+#if !defined(WSL_HACK)
     if (permissions[3] == 'p')
       region.permissions |= MappedMemoryRegion::PRIVATE;
     else if (permissions[3] != 's' && permissions[3] != 'S')  // Shared memory.
       return false;
-
+#else
+    // WSL always sets character to '-'. Pretend it's 'p'.
+    region.permissions |= MappedMemoryRegion::PRIVATE;    
+#endif
     // Pushing then assigning saves us a string copy.
     regions.push_back(region);
     regions.back().path.assign(line + path_index);
diff --git a/base/files/dir_reader_linux.h b/base/files/dir_reader_linux.h
index 4ce0c34..c32700a 100644
--- a/base/files/dir_reader_linux.h
+++ b/base/files/dir_reader_linux.h
@@ -34,6 +34,7 @@ class DirReaderLinux {
       : fd_(open(directory_path, O_RDONLY | O_DIRECTORY)),
         offset_(0),
         size_(0) {
+    DLOG(ERROR) << "DirReaderLinux(): " << directory_path;
     memset(buf_, 0, sizeof(buf_));
   }
 
@@ -58,13 +59,26 @@ class DirReaderLinux {
     if (offset_ != size_)
       return true;
 
+    DLOG(ERROR) << "getdents64 fd " << fd_ << "buf: " << buf_ << "size: " << sizeof(buf_);
     const int r = syscall(__NR_getdents64, fd_, buf_, sizeof(buf_));
     if (r == 0)
       return false;
     if (r == -1) {
+#if !defined(WSL_HACK)
       DPLOG(FATAL) << "getdents64 returned an error: " << errno;
+#else
+      DLOG(ERROR) << "getdents64 returned an error: " << errno;
+#endif
       return false;
     }
+
+    int off = 0;
+    while (off < r) {
+      linux_dirent* dirent = reinterpret_cast<linux_dirent*>(&buf_[offset_]);
+      DLOG(ERROR) << dirent->d_name;
+      off += dirent->d_reclen;
+    }
+
     size_ = r;
     offset_ = 0;
     return true;
@@ -89,7 +103,11 @@ class DirReaderLinux {
 
  private:
   const int fd_;
+#if !defined(WSL_HACK)
   unsigned char buf_[512];
+#else
+  unsigned char buf_[64*1024*1024];
+#endif
   size_t offset_;
   size_t size_;
 
diff --git a/base/files/dir_reader_posix.h b/base/files/dir_reader_posix.h
index 6a32d9f..aa28db8 100644
--- a/base/files/dir_reader_posix.h
+++ b/base/files/dir_reader_posix.h
@@ -17,7 +17,7 @@
 // seems worse than falling back to enumerating all file descriptors so we will
 // probably never implement this on the Mac.
 
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) && !defined(WSL_HACK)
 #include "base/files/dir_reader_linux.h"
 #else
 #include "base/files/dir_reader_fallback.h"
@@ -25,7 +25,7 @@
 
 namespace base {
 
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) && !defined(WSL_HACK)
 typedef DirReaderLinux DirReaderPosix;
 #else
 typedef DirReaderFallback DirReaderPosix;
diff --git a/build/build_config.h b/build/build_config.h
index c3d82d0..54a27d9 100644
--- a/build/build_config.h
+++ b/build/build_config.h
@@ -15,6 +15,8 @@
 #ifndef BUILD_BUILD_CONFIG_H_
 #define BUILD_BUILD_CONFIG_H_
 
+#define WSL_HACK 1
+
 // A set of macros to use for platform detection.
 #if defined(__native_client__)
 // __native_client__ must be first, so that other OS_ defines are not set.
diff --git a/build/common.gypi b/build/common.gypi
index f5d107d..4fdc7c0 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -735,7 +735,8 @@
 
         # libudev usage.  This currently only affects the content layer.
         ['OS=="linux" and embedded==0', {
-          'use_udev%': 1,
+          # 'use_udev%': 1,
+          'use_udev%': 0,          
         }, {
           'use_udev%': 0,
         }],
diff --git a/chrome/browser/extensions/api/image_writer_private/removable_storage_provider_linux.cc b/chrome/browser/extensions/api/image_writer_private/removable_storage_provider_linux.cc
index 60921f3..fa3b40c 100644
--- a/chrome/browser/extensions/api/image_writer_private/removable_storage_provider_linux.cc
+++ b/chrome/browser/extensions/api/image_writer_private/removable_storage_provider_linux.cc
@@ -8,12 +8,15 @@
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/extensions/api/image_writer_private/removable_storage_provider.h"
 #include "content/public/browser/browser_thread.h"
+#if defined(USE_UDEV)
 #include "device/udev_linux/scoped_udev.h"
+#endif
 
 namespace extensions {
 // TODO(haven): Udev code may be duplicated in the Chrome codebase.
 // https://code.google.com/p/chromium/issues/detail?id=284898
 
+#if defined(USE_UDEV)
 // Returns the integer contained in |attr|.  Returns 0 on error.
 static uint64_t get_int_attr(const char* attr) {
   uint64_t result = 0;
@@ -41,9 +44,11 @@ static int get_device_blk_size(const std::string& path) {
 
   return blk_size;
 }
+#endif // defined(USE_UDEV)
 
 bool RemovableStorageProvider::PopulateDeviceList(
     scoped_refptr<StorageDeviceList> device_list) {
+#if defined (USE_UDEV)
   device::ScopedUdevPtr udev(device::udev_new());
   if (!udev) {
     DLOG(ERROR) << "Can't create udev";
@@ -105,7 +110,8 @@ bool RemovableStorageProvider::PopulateDeviceList(
 
     device_list->data.push_back(std::move(device_item));
   }
-
+#endif // defined(USE_UDEV)
+  
   return true;
 }
 
diff --git a/components/storage_monitor/storage_monitor.cc b/components/storage_monitor/storage_monitor.cc
index 6f2b23c..d6714c3 100644
--- a/components/storage_monitor/storage_monitor.cc
+++ b/components/storage_monitor/storage_monitor.cc
@@ -52,7 +52,9 @@ void StorageMonitor::ReceiverImpl::MarkInitialized() {
 // static
 void StorageMonitor::Create() {
   delete g_storage_monitor;
+#if defined(USE_UDEV)
   g_storage_monitor = CreateInternal();
+#endif
 }
 
 // static
diff --git a/device/serial/serial_service_impl.cc b/device/serial/serial_service_impl.cc
index 97ad57f..a8e2530 100644
--- a/device/serial/serial_service_impl.cc
+++ b/device/serial/serial_service_impl.cc
@@ -75,8 +75,10 @@ void SerialServiceImpl::Connect(
 }
 
 SerialDeviceEnumerator* SerialServiceImpl::GetDeviceEnumerator() {
+#if defined(USE_UDEV)
   if (!device_enumerator_)
     device_enumerator_ = SerialDeviceEnumerator::Create();
+#endif
   return device_enumerator_.get();
 }
 
diff --git a/extensions/browser/api/serial/serial_api.cc b/extensions/browser/api/serial/serial_api.cc
index 3f126a8..bdc1b5c 100644
--- a/extensions/browser/api/serial/serial_api.cc
+++ b/extensions/browser/api/serial/serial_api.cc
@@ -86,11 +86,13 @@ bool SerialGetDevicesFunction::Prepare() {
 void SerialGetDevicesFunction::Work() {
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 
+#if defined(USE_UDEV)
   std::unique_ptr<device::SerialDeviceEnumerator> enumerator =
       device::SerialDeviceEnumerator::Create();
   mojo::Array<device::serial::DeviceInfoPtr> devices = enumerator->GetDevices();
   results_ = serial::GetDevices::Results::Create(
       devices.To<std::vector<serial::DeviceInfo>>());
+#endif
 }
 
 SerialConnectFunction::SerialConnectFunction() {