update_engine: update to libbase 242728

Made update_engine link with libchrome-242728 and fixed compile
issues due to changes in namespaces and include file layout.

Also removed some of suppressed compiler warnings and fixed the
issues masked by them (e.g. mismatched printf-like specifiers).

Added -Wextra compiler option to enable additional useful warnings
to ensure more strict checking... Had to disable "unused-parameter"
though since we have a lot of functions (mainly in fakes) that do
not use all of their parameters.

BUG=chromium:351593
TEST=Unit tests passed.
CQ-DEPEND=CL:191721

Change-Id: I1aa63a48d5f1f4ea75ba6b00aec7aa5f3bad15c4
Reviewed-on: https://chromium-review.googlesource.com/191510
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/payload_state_unittest.cc b/payload_state_unittest.cc
index 8029b69..f804599 100644
--- a/payload_state_unittest.cc
+++ b/payload_state_unittest.cc
@@ -4,9 +4,9 @@
 
 #include <glib.h>
 
-#include "base/file_path.h"
+#include <base/files/file_path.h>
 #include "base/file_util.h"
-#include "base/stringprintf.h"
+#include <base/strings/stringprintf.h>
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 
@@ -73,17 +73,17 @@
 
   string expected_response_sign =
       (http_enabled ? expected_urls_both : expected_url_https_only) +
-      StringPrintf("Payload Size = 523456789\n"
-                   "Payload Sha256 Hash = %s\n"
-                   "Metadata Size = 558123\n"
-                   "Metadata Signature = metasign\n"
-                   "Is Delta Payload = %d\n"
-                   "Max Failure Count Per Url = %d\n"
-                   "Disable Payload Backoff = %d\n",
-                   hash.c_str(),
-                   response->is_delta_payload,
-                   response->max_failure_count_per_url,
-                   response->disable_payload_backoff);
+      base::StringPrintf("Payload Size = 523456789\n"
+                         "Payload Sha256 Hash = %s\n"
+                         "Metadata Size = 558123\n"
+                         "Metadata Signature = metasign\n"
+                         "Is Delta Payload = %d\n"
+                         "Max Failure Count Per Url = %d\n"
+                         "Disable Payload Backoff = %d\n",
+                         hash.c_str(),
+                         response->is_delta_payload,
+                         response->max_failure_count_per_url,
+                         response->disable_payload_backoff);
   EXPECT_EQ(expected_response_sign, stored_response_sign);
 }
 
@@ -1071,7 +1071,7 @@
   // We need persistent preferences for this test
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateDurationTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
 
   mock_system_state.set_clock(&fake_clock);
   mock_system_state.set_prefs(&prefs);
@@ -1135,7 +1135,7 @@
   // We need persistent preferences for this test
   EXPECT_TRUE(utils::MakeTempDirectory(
       "RebootAfterSuccessfulUpdateTest.XXXXXX", &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
 
   mock_system_state.set_clock(&fake_clock);
   mock_system_state.set_prefs(&prefs);
@@ -1357,7 +1357,7 @@
   // Setup an environment with persistent prefs across simulated reboots.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateReboot.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_prefs(&prefs);
 
   FakeHardware* fake_hardware = mock_system_state.get_fake_hardware();
@@ -1407,7 +1407,7 @@
   // Setup an environment with persistent prefs across simulated reboots.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateReboot.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_prefs(&prefs);
 
   FakeHardware* fake_hardware = mock_system_state.get_fake_hardware();
@@ -1447,7 +1447,7 @@
   // Setup an environment with persistent prefs across simulated reboots.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateReboot.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_prefs(&prefs);
 
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));
@@ -1480,7 +1480,7 @@
   // Setup an environment with persistent but initially empty prefs.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateReboot.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_prefs(&prefs);
 
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));
@@ -1505,7 +1505,7 @@
   // We need persistent preferences for this test.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateP2PTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
 
   mock_system_state.set_prefs(&prefs);
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));
@@ -1534,7 +1534,7 @@
   // We need persistent preferences for this test.
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateP2PTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
 
   mock_system_state.set_clock(&fake_clock);
   mock_system_state.set_prefs(&prefs);
@@ -1585,7 +1585,7 @@
 
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateP2PTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_prefs(&prefs);
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));
   SetupPayloadStateWith2Urls("Hash8593", true, &payload_state, &response);
@@ -1607,7 +1607,7 @@
 
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateP2PTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_clock(&fake_clock);
   mock_system_state.set_prefs(&prefs);
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));
@@ -1642,7 +1642,7 @@
 
   EXPECT_TRUE(utils::MakeTempDirectory("PayloadStateP2PTests.XXXXXX",
                                        &temp_dir));
-  prefs.Init(FilePath(temp_dir));
+  prefs.Init(base::FilePath(temp_dir));
   mock_system_state.set_clock(&fake_clock);
   mock_system_state.set_prefs(&prefs);
   EXPECT_TRUE(payload_state.Initialize(&mock_system_state));