[iOS] Remove unused iOS version checks

Bug: 748410
Change-Id: I6ab9e1eabb776796342fdb94237d837fb309efd1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2414777
Auto-Submit: Mike Dougherty <michaeldo@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807932}

base/ios/ios_util.h

@@ -13,12 +13,6 @@
 namespace base {
 namespace ios {
 
-// Returns whether the operating system is iOS 10 or later.
-BASE_EXPORT bool IsRunningOnIOS10OrLater();
-
-// Returns whether the operating system is iOS 11 or later.
-BASE_EXPORT bool IsRunningOnIOS11OrLater();
-
 // Returns whether the operating system is iOS 12 or later.
 BASE_EXPORT bool IsRunningOnIOS12OrLater();
 

base/ios/ios_util.mm

@@ -28,16 +28,6 @@ std::string* g_icudtl_path_override = nullptr;
 namespace base {
 namespace ios {
 
-bool IsRunningOnIOS10OrLater() {
-  static const bool is_running_on_or_later = IsRunningOnOrLater(10, 0, 0);
-  return is_running_on_or_later;
-}
-
-bool IsRunningOnIOS11OrLater() {
-  static const bool is_running_on_or_later = IsRunningOnOrLater(11, 0, 0);
-  return is_running_on_or_later;
-}
-
 bool IsRunningOnIOS12OrLater() {
   static const bool is_running_on_or_later = IsRunningOnOrLater(12, 0, 0);
   return is_running_on_or_later;

base/trace_event/process_memory_dump_unittest.cc

@@ -25,10 +25,6 @@
 #include <sys/mman.h>
 #endif
 
-#if defined(OS_IOS)
-#include "base/ios/ios_util.h"
-#endif
-
 namespace base {
 namespace trace_event {
 
@@ -512,13 +508,6 @@ TEST(ProcessMemoryDumpTest, MAYBE_CountResidentBytes) {
 #define MAYBE_CountResidentBytesInSharedMemory CountResidentBytesInSharedMemory
 #endif
 TEST(ProcessMemoryDumpTest, MAYBE_CountResidentBytesInSharedMemory) {
-#if defined(OS_IOS)
-  // TODO(crbug.com/748410): Reenable this test.
-  if (!base::ios::IsRunningOnIOS10OrLater()) {
-    return;
-  }
-#endif
-
   const size_t page_size = ProcessMemoryDump::GetSystemPageSize();
 
   // Allocate few page of dirty memory and check if it is resident.