Use base::SysInfo::NumberOfProcessors directly.

Change-Id: I3b2de4b9175daf66cedd63b62474d35b4f185ab4
Reviewed-on: https://chromium-review.googlesource.com/1038614Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556066}

content/child/blink_platform_impl.cc

@@ -742,10 +742,6 @@ bool BlinkPlatformImpl::DatabaseSetFileSize(
   return false;
 }
 
-size_t BlinkPlatformImpl::NumberOfProcessors() {
-  return static_cast<size_t>(base::SysInfo::NumberOfProcessors());
-}
-
 size_t BlinkPlatformImpl::MaxDecodedImageBytes() {
   const int kMB = 1024 * 1024;
   const int kMaxNumberOfBytesPerPixel = 4;

content/child/blink_platform_impl.h

@@ -71,7 +71,6 @@ class CONTENT_EXPORT BlinkPlatformImpl : public blink::Platform {
       const blink::WebSecurityOrigin& origin) override;
   bool DatabaseSetFileSize(const blink::WebString& vfs_file_name,
                            long long size) override;
-  size_t NumberOfProcessors() override;
 
   size_t MaxDecodedImageBytes() override;
   bool IsLowEndDevice() override;

third_party/blink/public/platform/platform.h

@@ -302,9 +302,6 @@ class BLINK_PLATFORM_EXPORT Platform {
   // hash must have been generated by calling VisitedLinkHash().
   virtual bool IsLinkVisited(unsigned long long link_hash) { return false; }
 
-  // Return the number of of processors of the current machine.
-  virtual size_t NumberOfProcessors() { return 0; }
-
   static const size_t kNoDecodedImageByteLimit = static_cast<size_t>(-1);
 
   // Returns the maximum amount of memory a decoded image should be allowed.

third_party/blink/renderer/DEPS

@@ -14,6 +14,7 @@ include_rules = [
     "+base/sequenced_task_runner.h",
     "+base/single_thread_task_runner.h",
     "+base/stl_util.h",
+    "+base/sys_info.h",
     "+base/task_scheduler/post_task.h",
     "+base/thread_annotations.h",
     "+base/threading/thread_checker.h",

third_party/blink/renderer/core/frame/navigator_concurrent_hardware.cc

@@ -4,12 +4,12 @@
 
 #include "third_party/blink/renderer/core/frame/navigator_concurrent_hardware.h"
 
-#include "third_party/blink/public/platform/platform.h"
+#include "base/sys_info.h"
 
 namespace blink {
 
 unsigned NavigatorConcurrentHardware::hardwareConcurrency() const {
-  return Platform::Current()->NumberOfProcessors();
+  return static_cast<unsigned>(base::SysInfo::NumberOfProcessors());
 }
 
 }  // namespace blink

third_party/blink/tools/audit_non_blink_usage.py

@@ -40,6 +40,7 @@ _CONFIG = [
             'base::CreateSequencedTaskRunnerWithTraits',
             'base::SequencedTaskRunner',
             'base::SingleThreadTaskRunner',
+            'base::SysInfo',
             'base::ThreadChecker',
             'base::Time',
             'base::TimeDelta',