Cleanup: Use ContainsValue() instead of std::find() in base/

BUG=561800

Review URL: https://codereview.chromium.org/1473983004

Cr-Commit-Position: refs/heads/master@{#363519}

2 files changed, 17 insertions, 27 deletions

diff --git a/base/trace_event/trace_event_unittest.cc b/base/trace_event/trace_event_unittest.cc
index 533a298..a588ce0 100644
--- a/base/trace_event/trace_event_unittest.cc
+++ b/base/trace_event/trace_event_unittest.cc
@@ -15,6 +15,7 @@
 #include "base/memory/singleton.h"
 #include "base/process/process_handle.h"
 #include "base/single_thread_task_runner.h"
+#include "base/stl_util.h"
 #include "base/strings/pattern.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
@@ -1132,7 +1133,7 @@ TEST_F(TraceEventTestFixture, AddMetadataEvent) {
 
   class Convertable : public ConvertableToTraceFormat {
    public:
-    Convertable(int* num_calls) : num_calls_(num_calls) {}
+    explicit Convertable(int* num_calls) : num_calls_(num_calls) {}
     void AppendAsTraceFormat(std::string* out) const override {
       (*num_calls_)++;
       out->append("\"metadata_value\"");
@@ -1202,24 +1203,15 @@ TEST_F(TraceEventTestFixture, Categories) {
   EndTraceAndFlush();
   std::vector<std::string> cat_groups;
   TraceLog::GetInstance()->GetKnownCategoryGroups(&cat_groups);
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c1") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c2") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c3") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c4") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c5,c6") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "c7,c8") != cat_groups.end());
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(),
-                        "disabled-by-default-c9") != cat_groups.end());
+  EXPECT_TRUE(ContainsValue(cat_groups, "c1"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "c2"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "c3"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "c4"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "c5,c6"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "c7,c8"));
+  EXPECT_TRUE(ContainsValue(cat_groups, "disabled-by-default-c9"));
   // Make sure metadata isn't returned.
-  EXPECT_TRUE(std::find(cat_groups.begin(),
-                        cat_groups.end(), "__metadata") == cat_groups.end());
+  EXPECT_FALSE(ContainsValue(cat_groups, "__metadata"));
 
   const std::vector<std::string> empty_categories;
   std::vector<std::string> included_categories;
diff --git a/base/trace_event/trace_log.cc b/base/trace_event/trace_log.cc
index 791d9a2..772caf5 100644
--- a/base/trace_event/trace_log.cc
+++ b/base/trace_event/trace_log.cc
@@ -17,6 +17,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/process/process_metrics.h"
+#include "base/stl_util.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_tokenizer.h"
 #include "base/strings/stringprintf.h"
@@ -34,7 +35,6 @@
 #include "base/trace_event/trace_buffer.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_synthetic_delay.h"
-#include "base/trace_event/trace_log.h"
 #include "base/trace_event/trace_sampling_thread.h"
 
 #if defined(OS_WIN)
@@ -212,15 +212,16 @@ class TraceLog::ThreadLocalEventBuffer
     : public MessageLoop::DestructionObserver,
       public MemoryDumpProvider {
  public:
-  ThreadLocalEventBuffer(TraceLog* trace_log);
+  explicit ThreadLocalEventBuffer(TraceLog* trace_log);
   ~ThreadLocalEventBuffer() override;
 
   TraceEvent* AddTraceEvent(TraceEventHandle* handle);
 
   TraceEvent* GetEventByHandle(TraceEventHandle handle) {
     if (!chunk_ || handle.chunk_seq != chunk_->seq() ||
-        handle.chunk_index != chunk_index_)
-      return NULL;
+        handle.chunk_index != chunk_index_) {
+      return nullptr;
+    }
 
     return chunk_->GetEventAt(handle.event_index);
   }
@@ -770,10 +771,7 @@ void TraceLog::RemoveEnabledStateObserver(EnabledStateObserver* listener) {
 
 bool TraceLog::HasEnabledStateObserver(EnabledStateObserver* listener) const {
   AutoLock lock(lock_);
-  std::vector<EnabledStateObserver*>::const_iterator it =
-      std::find(enabled_state_observer_list_.begin(),
-                enabled_state_observer_list_.end(), listener);
-  return it != enabled_state_observer_list_.end();
+  return ContainsValue(enabled_state_observer_list_, listener);
 }
 
 TraceLogStatus TraceLog::GetStatus() const {
@@ -834,7 +832,7 @@ void TraceLog::SetEventCallbackEnabled(const TraceConfig& trace_config,
                           reinterpret_cast<subtle::AtomicWord>(cb));
   event_callback_trace_config_ = trace_config;
   UpdateCategoryGroupEnabledFlags();
-};
+}
 
 void TraceLog::SetEventCallbackDisabled() {
   AutoLock lock(lock_);