[partition-as-single] Add SinglePartitionFormat to private api.

Bug: 491043
Change-Id: Ib87a5acf508ad25cbd5a84e584c75cb5df0d5c9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2422102Reviewed-by: Ben Wells <benwells@chromium.org>
Reviewed-by: Austin Tankiang <austinct@chromium.org>
Commit-Queue: Omid Tourzan <oto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812567}

chrome/browser/chromeos/extensions/file_manager/private_api_file_system.cc

@@ -43,6 +43,7 @@
 #include "chrome/common/extensions/api/file_manager_private.h"
 #include "chrome/common/extensions/api/file_manager_private_internal.h"
 #include "chromeos/constants/chromeos_features.h"
+#include "chromeos/disks/disk.h"
 #include "chromeos/disks/disk_mount_manager.h"
 #include "components/drive/event_logger.h"
 #include "components/drive/file_system_core_util.h"
@@ -700,6 +701,44 @@ FileManagerPrivateFormatVolumeFunction::Run() {
   return RespondNow(NoArguments());
 }
 
+ExtensionFunction::ResponseAction
+FileManagerPrivateSinglePartitionFormatFunction::Run() {
+  using extensions::api::file_manager_private::SinglePartitionFormat::Params;
+  const std::unique_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  const ChromeExtensionFunctionDetails chrome_details(this);
+
+  const DiskMountManager::DiskMap& disks =
+      DiskMountManager::GetInstance()->disks();
+
+  chromeos::disks::Disk* device_disk;
+  DiskMountManager::DiskMap::const_iterator it;
+
+  for (it = disks.begin(); it != disks.end(); ++it) {
+    if (it->second->storage_device_path() == params->device_storage_path &&
+        it->second->is_parent()) {
+      device_disk = it->second.get();
+      break;
+    }
+  }
+
+  if (it == disks.end()) {
+    return RespondNow(Error("Device not found"));
+  }
+
+  if (!device_disk->on_removable_device() || device_disk->on_boot_device() ||
+      device_disk->is_read_only()) {
+    return RespondNow(Error("Invalid device"));
+  }
+
+  DiskMountManager::GetInstance()->SinglePartitionFormatDevice(
+      device_disk->device_path(),
+      ApiFormatFileSystemToChromeEnum(params->filesystem),
+      params->volume_label);
+  return RespondNow(NoArguments());
+}
+
 ExtensionFunction::ResponseAction
 FileManagerPrivateRenameVolumeFunction::Run() {
   using extensions::api::file_manager_private::RenameVolume::Params;

chrome/browser/chromeos/extensions/file_manager/private_api_file_system.h

@@ -229,6 +229,21 @@ class FileManagerPrivateFormatVolumeFunction : public LoggedExtensionFunction {
   ResponseAction Run() override;
 };
 
+// Implements the chrome.fileManagerPrivate.singlePartitionFormat method.
+// Deletes removable device partitions, create a single partition and format.
+class FileManagerPrivateSinglePartitionFormatFunction
+    : public LoggedExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("fileManagerPrivate.singlePartitionFormat",
+                             FILEMANAGERPRIVATE_SINGLEPARTITIONFORMAT)
+
+ protected:
+  ~FileManagerPrivateSinglePartitionFormatFunction() override = default;
+
+  // ExtensionFunction overrides.
+  ResponseAction Run() override;
+};
+
 // Implements the chrome.fileManagerPrivate.renameVolume method.
 // Renames Volume given its mount path and new Volume name.
 class FileManagerPrivateRenameVolumeFunction : public LoggedExtensionFunction {

chrome/common/extensions/api/file_manager_private.idl

@@ -1117,6 +1117,15 @@ interface Functions {
                            FormatFileSystemType filesystem,
                            DOMString volumeLabel);
 
+  // Deletes partitions of removable device, creates a new partition and format
+  // it.
+  // |deviceStoragePath| Storage path of the device to be formatted.
+  // |filesystem| Filesystem type to be formatted to.
+  // |volumeLabel| Label of the drive after formatting.
+  static void singlePartitionFormat(DOMString deviceStoragePath,
+                           FormatFileSystemType filesystem,
+                           DOMString volumeLabel);
+
   // Renames a mounted volume.
   // |volumeId| ID of the volume to be renamed.
   // |newName| New name of the target volume.

extensions/browser/extension_function_histogram_value.h

@@ -1571,6 +1571,7 @@ enum HistogramValue {
   DECLARATIVENETREQUEST_ISREGEXSUPPORTED = 1508,
   PASSWORDSPRIVATE_GETWEAKCREDENTIALS = 1509,
   ACCESSIBILITY_PRIVATE_MOVEMAGNIFIERTORECT = 1510,
+  FILEMANAGERPRIVATE_SINGLEPARTITIONFORMAT = 1511,
   // Last entry: Add new entries above, then run:
   // python tools/metrics/histograms/update_extension_histograms.py
   ENUM_BOUNDARY

third_party/closure_compiler/externs/file_manager_private.js

@@ -824,6 +824,16 @@ chrome.fileManagerPrivate.getSizeStats = function(volumeId, callback) {};
 chrome.fileManagerPrivate.formatVolume = function(volumeId, filesystem,
     volumeLabel) {};
 
+/**
+ * Deletes partitions of removable device, creates a single partition
+ * and format it.
+ * @param {string} devicePath
+ * @param {chrome.fileManagerPrivate.FormatFileSystemType} filesystem
+ * @param {string} volumeLabel
+ */
+chrome.fileManagerPrivate.singlePartitionFormat = function(devicePath,
+  filesystem, volumeLabel) {};
+
 /**
  * Renames a mounted volume. |volumeId| ID of the volume to be renamed to
  * |newName|.

tools/metrics/histograms/enums.xml

@@ -24667,6 +24667,7 @@ Called by update_extension_histograms.py.-->
   <int value="1508" label="DECLARATIVENETREQUEST_ISREGEXSUPPORTED"/>
   <int value="1509" label="PASSWORDSPRIVATE_GETWEAKCREDENTIALS"/>
   <int value="1510" label="ACCESSIBILITY_PRIVATE_MOVEMAGNIFIERTORECT"/>
+  <int value="1511" label="FILEMANAGERPRIVATE_SINGLEPARTITIONFORMAT"/>
 </enum>
 
 <enum name="ExtensionIconState">