Convert the few remaining ARRAYSIZE_UNSAFE -> arraysize.

There are still ARRAYSIZE_UNSAFEs in ppapi/tests/test_audio.cc, but it
defines it itself, and it might be compiled by some older NaCl toolchain
that doesn't support C++11. third_party/npapi/npspy/common/format.cpp
also has its own ARRAYSIZE_UNSAFE, but I'm hoping to delete npspy
completely.)

I'll remove ARRAYSIZE_UNSAFE from base/macro.h separately, since it's
quite likely we have deps that use our base (and those deps may use it).

R=ben@chromium.org
TBR=armansito@chromium.org
BUG=423134

Review URL: https://codereview.chromium.org/663673002

Cr-Commit-Position: refs/heads/master@{#300034}

11 files changed, 23 insertions, 70 deletions

diff --git a/android_webview/browser/scoped_app_gl_state_restore.cc b/android_webview/browser/scoped_app_gl_state_restore.cc
index a36e061..43bd8aa 100644
--- a/android_webview/browser/scoped_app_gl_state_restore.cc
+++ b/android_webview/browser/scoped_app_gl_state_restore.cc
@@ -273,7 +273,7 @@ ScopedAppGLStateRestoreImpl::ScopedAppGLStateRestoreImpl(
     glBindVertexArrayOES(0);
   }
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(vertex_attrib_); ++i) {
+  for (size_t i = 0; i < arraysize(vertex_attrib_); ++i) {
     glGetVertexAttribiv(
         i, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &vertex_attrib_[i].enabled);
     glGetVertexAttribiv(
@@ -309,7 +309,7 @@ ScopedAppGLStateRestoreImpl::~ScopedAppGLStateRestoreImpl() {
   if (g_supports_oes_vertex_array_object)
     glBindVertexArrayOES(0);
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(vertex_attrib_); ++i) {
+  for (size_t i = 0; i < arraysize(vertex_attrib_); ++i) {
     glBindBuffer(GL_ARRAY_BUFFER,
                  vertex_attrib_[i].vertex_attrib_array_buffer_binding);
     glVertexAttribPointer(i,
diff --git a/chromeos/network/network_cert_migrator.cc b/chromeos/network/network_cert_migrator.cc
index 1b50820..613d46a 100644
--- a/chromeos/network/network_cert_migrator.cc
+++ b/chromeos/network/network_cert_migrator.cc
@@ -210,7 +210,7 @@ class NetworkCertMigrator::MigrationTask
          shill::kOpenVPNCaCertPemProperty, UMA_NETWORK_TYPE_OPENVPN },
     };
 
-    for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kNssPemMap); ++i) {
+    for (size_t i = 0; i < arraysize(kNssPemMap); ++i) {
       const base::DictionaryValue* dict = &shill_properties;
       if (kNssPemMap[i].read_prefix) {
         shill_properties.GetDictionaryWithoutPathExpansion(
diff --git a/chromeos/network/network_change_notifier_chromeos_unittest.cc b/chromeos/network/network_change_notifier_chromeos_unittest.cc
index 04d549f..e1b8d78 100644
--- a/chromeos/network/network_change_notifier_chromeos_unittest.cc
+++ b/chromeos/network/network_change_notifier_chromeos_unittest.cc
@@ -92,7 +92,7 @@ TEST(NetworkChangeNotifierChromeosTest, ConnectionTypeFromShill) {
       NetworkChangeNotifier::CONNECTION_2G }
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(type_mappings); ++i) {
+  for (size_t i = 0; i < arraysize(type_mappings); ++i) {
     NetworkChangeNotifier::ConnectionType type =
         NetworkChangeNotifierChromeos::ConnectionTypeFromShill(
             type_mappings[i].shill_type, type_mappings[i].technology);
diff --git a/crypto/hmac_unittest.cc b/crypto/hmac_unittest.cc
index 174c323..91eccd6 100644
--- a/crypto/hmac_unittest.cc
+++ b/crypto/hmac_unittest.cc
@@ -142,7 +142,7 @@ TEST(HMACTest, RFC2202TestCases) {
           "\xBB\xFF\x1A\x91" }
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
+  for (size_t i = 0; i < arraysize(cases); ++i) {
     crypto::HMAC hmac(crypto::HMAC::SHA1);
     ASSERT_TRUE(hmac.Init(reinterpret_cast<const unsigned char*>(cases[i].key),
                           cases[i].key_len));
@@ -239,7 +239,7 @@ TEST(HMACTest, HMACObjectReuse) {
   ASSERT_TRUE(
       hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
                 kSimpleKeyLength));
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+  for (size_t i = 0; i < arraysize(kSimpleHmacCases); ++i) {
     std::string data_string(kSimpleHmacCases[i].data,
                             kSimpleHmacCases[i].data_len);
     unsigned char digest[kSHA1DigestSize];
@@ -254,7 +254,7 @@ TEST(HMACTest, Verify) {
       hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
                 kSimpleKeyLength));
   const char empty_digest[kSHA1DigestSize] = { 0 };
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+  for (size_t i = 0; i < arraysize(kSimpleHmacCases); ++i) {
     // Expected results
     EXPECT_TRUE(hmac.Verify(
         base::StringPiece(kSimpleHmacCases[i].data,
diff --git a/device/bluetooth/bluetooth_uuid_unittest.cc b/device/bluetooth/bluetooth_uuid_unittest.cc
index c59ab1c..380d151 100644
--- a/device/bluetooth/bluetooth_uuid_unittest.cc
+++ b/device/bluetooth/bluetooth_uuid_unittest.cc
@@ -95,7 +95,7 @@ TEST(BluetoothUUIDTest, BluetoothUUID_CaseInsensitive) {
     { "00001aBc-0000-1000-8000-00805F9b34fB", k128Bit },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
+  for (size_t i = 0; i < arraysize(test_cases); ++i) {
     SCOPED_TRACE("Input UUID: " + test_cases[i].input_uuid);
     BluetoothUUID uuid(test_cases[i].input_uuid);
     EXPECT_TRUE(uuid.IsValid());
diff --git a/device/hid/hid_report_descriptor_unittest.cc b/device/hid/hid_report_descriptor_unittest.cc
index 681459c..dc0f96a 100644
--- a/device/hid/hid_report_descriptor_unittest.cc
+++ b/device/hid/hid_report_descriptor_unittest.cc
@@ -356,7 +356,7 @@ TEST_F(HidReportDescriptorTest, ValidateDetails_Digitizer) {
   digitizer.report_ids.insert(3);
   HidCollectionInfo expected[] = {digitizer};
   ValidateDetails(std::vector<HidCollectionInfo>(
-                      expected, expected + ARRAYSIZE_UNSAFE(expected)),
+                      expected, expected + arraysize(expected)),
                   true,
                   6,
                   0,
@@ -370,7 +370,7 @@ TEST_F(HidReportDescriptorTest, ValidateDetails_Keyboard) {
   keyboard.usage = HidUsageAndPage(0x06, HidUsageAndPage::kPageGenericDesktop);
   HidCollectionInfo expected[] = {keyboard};
   ValidateDetails(std::vector<HidCollectionInfo>(
-                      expected, expected + ARRAYSIZE_UNSAFE(expected)),
+                      expected, expected + arraysize(expected)),
                   false,
                   8,
                   1,
@@ -389,7 +389,7 @@ TEST_F(HidReportDescriptorTest, ValidateDetails_Monitor) {
   monitor.report_ids.insert(5);
   HidCollectionInfo expected[] = {monitor};
   ValidateDetails(std::vector<HidCollectionInfo>(
-                      expected, expected + ARRAYSIZE_UNSAFE(expected)),
+                      expected, expected + arraysize(expected)),
                   true,
                   0,
                   0,
@@ -403,7 +403,7 @@ TEST_F(HidReportDescriptorTest, ValidateDetails_Mouse) {
   mouse.usage = HidUsageAndPage(0x02, HidUsageAndPage::kPageGenericDesktop);
   HidCollectionInfo expected[] = {mouse};
   ValidateDetails(std::vector<HidCollectionInfo>(
-                      expected, expected + ARRAYSIZE_UNSAFE(expected)),
+                      expected, expected + arraysize(expected)),
                   false,
                   3,
                   0,
@@ -426,7 +426,7 @@ TEST_F(HidReportDescriptorTest, ValidateDetails_LogitechUnifyingReceiver) {
 
   HidCollectionInfo expected[] = {hidpp_short, hidpp_long, hidpp_dj};
   ValidateDetails(std::vector<HidCollectionInfo>(
-                      expected, expected + ARRAYSIZE_UNSAFE(expected)),
+                      expected, expected + arraysize(expected)),
                   true,
                   31,
                   31,
diff --git a/gin/converter_unittest.cc b/gin/converter_unittest.cc
index 791d7e6..f8011d6 100644
--- a/gin/converter_unittest.cc
+++ b/gin/converter_unittest.cc
@@ -55,7 +55,7 @@ TEST_F(ConverterTest, Bool) {
     { Undefined(instance_->isolate()).As<Value>(), false },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data); ++i) {
+  for (size_t i = 0; i < arraysize(test_data); ++i) {
     bool result = false;
     EXPECT_TRUE(Converter<bool>::FromV8(instance_->isolate(),
                                         test_data[i].input, &result));
@@ -72,7 +72,7 @@ TEST_F(ConverterTest, Int32) {
   HandleScope handle_scope(instance_->isolate());
 
   int test_data_to[] = {-1, 0, 1};
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data_to); ++i) {
+  for (size_t i = 0; i < arraysize(test_data_to); ++i) {
     EXPECT_TRUE(Converter<int32_t>::ToV8(instance_->isolate(), test_data_to[i])
                     ->StrictEquals(
                           Integer::New(instance_->isolate(), test_data_to[i])));
@@ -98,7 +98,7 @@ TEST_F(ConverterTest, Int32) {
     { v8::Undefined(instance_->isolate()).As<Value>(), false, 0 },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data_from); ++i) {
+  for (size_t i = 0; i < arraysize(test_data_from); ++i) {
     int32_t result = std::numeric_limits<int32_t>::min();
     bool success = Converter<int32_t>::FromV8(instance_->isolate(),
                                               test_data_from[i].input, &result);
diff --git a/google_apis/drive/drive_api_url_generator_unittest.cc b/google_apis/drive/drive_api_url_generator_unittest.cc
index 557a0af..8ebc175 100644
--- a/google_apis/drive/drive_api_url_generator_unittest.cc
+++ b/google_apis/drive/drive_api_url_generator_unittest.cc
@@ -97,7 +97,7 @@ TEST_F(DriveApiUrlGeneratorTest, GetFilePatchUrl) {
     { true, false, "?setModifiedDate=true&updateViewedDate=false" },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestPatterns); ++i) {
+  for (size_t i = 0; i < arraysize(kTestPatterns); ++i) {
     EXPECT_EQ(
         "https://www.googleapis.com/drive/v2/files/0ADK06pfg" +
             kTestPatterns[i].expected_query,
@@ -188,7 +188,7 @@ TEST_F(DriveApiUrlGeneratorTest, GetFilesListUrl) {
     { 10, "token", "query", "?maxResults=10&pageToken=token&q=query" },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestPatterns); ++i) {
+  for (size_t i = 0; i < arraysize(kTestPatterns); ++i) {
     EXPECT_EQ(
         "https://www.googleapis.com/drive/v2/files" +
             kTestPatterns[i].expected_query,
@@ -288,7 +288,7 @@ TEST_F(DriveApiUrlGeneratorTest, GetChangesListUrl) {
       "&startChangeId=12345" },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestPatterns); ++i) {
+  for (size_t i = 0; i < arraysize(kTestPatterns); ++i) {
     EXPECT_EQ(
         "https://www.googleapis.com/drive/v2/changes" +
             kTestPatterns[i].expected_query,
diff --git a/mojo/examples/window_manager/debug_panel.cc b/mojo/examples/window_manager/debug_panel.cc
index 7d86cfe..7551fb4 100644
--- a/mojo/examples/window_manager/debug_panel.cc
+++ b/mojo/examples/window_manager/debug_panel.cc
@@ -99,7 +99,7 @@ void DebugPanel::Layout(views::View* view) {
     navigation_target_new_,
     navigation_target_source_,
   };
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(radios); ++i) {
+  for (size_t i = 0; i < arraysize(radios); ++i) {
     radios[i]->SetBounds(kControlBorderInset, y, w,
                          radios[i]->GetPreferredSize().height());
     y += radios[i]->height();
@@ -111,7 +111,7 @@ void DebugPanel::Layout(views::View* view) {
     close_last_,
     cross_app_,
   };
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(buttons); ++i) {
+  for (size_t i = 0; i < arraysize(buttons); ++i) {
     buttons[i]->SetBounds(kControlBorderInset, y, w,
                           buttons[i]->GetPreferredSize().height());
     y += buttons[i]->height();
diff --git a/third_party/cld/base/basictypes.h b/third_party/cld/base/basictypes.h
index 287d1c2..af28256 100644
--- a/third_party/cld/base/basictypes.h
+++ b/third_party/cld/base/basictypes.h
@@ -98,12 +98,6 @@ const  int64 kint64max  = (( int64) GG_LONGLONG(0x7FFFFFFFFFFFFFFF));
 // The expression is a compile-time constant, and therefore can be
 // used in defining new arrays, for example.  If you use arraysize on
 // a pointer by mistake, you will get a compile-time error.
-//
-// One caveat is that arraysize() doesn't accept any array of an
-// anonymous type or a type defined inside a function.  In these rare
-// cases, you have to use the unsafe ARRAYSIZE_UNSAFE() macro below.  This is
-// due to a limitation in C++'s template system.  The limitation might
-// eventually be removed, but it hasn't happened yet.
 
 // This template function declaration is used in defining arraysize.
 // Note that the function doesn't need an implementation, as we only
@@ -121,47 +115,6 @@ char (&ArraySizeHelper(const T (&array)[N]))[N];
 
 #define arraysize(array) (sizeof(ArraySizeHelper(array)))
 
-// ARRAYSIZE_UNSAFE performs essentially the same calculation as arraysize,
-// but can be used on anonymous types or types defined inside
-// functions.  It's less safe than arraysize as it accepts some
-// (although not all) pointers.  Therefore, you should use arraysize
-// whenever possible.
-//
-// The expression ARRAYSIZE_UNSAFE(a) is a compile-time constant of type
-// size_t.
-//
-// ARRAYSIZE_UNSAFE catches a few type errors.  If you see a compiler error
-//
-//   "warning: division by zero in ..."
-//
-// when using ARRAYSIZE_UNSAFE, you are (wrongfully) giving it a pointer.
-// You should only use ARRAYSIZE_UNSAFE on statically allocated arrays.
-//
-// The following comments are on the implementation details, and can
-// be ignored by the users.
-//
-// ARRAYSIZE_UNSAFE(arr) works by inspecting sizeof(arr) (the # of bytes in
-// the array) and sizeof(*(arr)) (the # of bytes in one array
-// element).  If the former is divisible by the latter, perhaps arr is
-// indeed an array, in which case the division result is the # of
-// elements in the array.  Otherwise, arr cannot possibly be an array,
-// and we generate a compiler error to prevent the code from
-// compiling.
-//
-// Since the size of bool is implementation-defined, we need to cast
-// !(sizeof(a) & sizeof(*(a))) to size_t in order to ensure the final
-// result has type size_t.
-//
-// This macro is not perfect as it wrongfully accepts certain
-// pointers, namely where the pointer size is divisible by the pointee
-// size.  Since all our code has to go through a 32-bit compiler,
-// where a pointer is 4 bytes, this means all pointers to a type whose
-// size is 3 or greater than 4 will be (righteously) rejected.
-
-#define ARRAYSIZE_UNSAFE(a) \
-  ((sizeof(a) / sizeof(*(a))) / \
-   static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))))
-
 
 // Use implicit_cast as a safe version of static_cast or const_cast
 // for upcasting in the type hierarchy (i.e. casting a pointer to Foo
@@ -189,7 +142,7 @@ inline To implicit_cast(From const &f) {
 // expression is true. For example, you could use it to verify the
 // size of a static array:
 //
-//   COMPILE_ASSERT(ARRAYSIZE_UNSAFE(content_type_names) == CONTENT_NUM_TYPES,
+//   COMPILE_ASSERT(arraysize(content_type_names) == CONTENT_NUM_TYPES,
 //                  content_type_names_incorrect_size);
 //
 // or to make sure a struct is smaller than a certain size:
diff --git a/tools/gn/label_unittest.cc b/tools/gn/label_unittest.cc
index 3067ef6..3ffa3f4 100644
--- a/tools/gn/label_unittest.cc
+++ b/tools/gn/label_unittest.cc
@@ -63,7 +63,7 @@ TEST(Label, Resolve) {
 
   Label default_toolchain(SourceDir("//t/"), "d");
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); i++) {
+  for (size_t i = 0; i < arraysize(cases); i++) {
     const ParseDepStringCase& cur = cases[i];
 
     std::string location, name;