Roll chromium_revision e144d30..6fdb142 (318658:318841) + remove OVERRIDE macro

Clang version changed 223108:230914
Details: https://chromium.googlesource.com/chromium/src/+/e144d30..6fdb142/tools/clang/scripts/update.sh

Removes the OVERRIDE macro defined in:
* webrtc/base/common.h
* webrtc/typedefs.h

The majority of the source changes were done by running this in src/:
perl -0pi -e "s/virtual\s([^({;]*(\([^({;]*\)[^({;]*))(OVERRIDE|override)/\1override/sg" `find {talk,webrtc} -name "*.h"  -o -name "*.cc*" -o -name "*.mm*"`

which converted all:
virtual Foo() OVERRIDE
functions to:
Foo() override

Then I manually edited:
* talk/media/webrtc/fakewebrtccommon.h
* webrtc/test/fake_common.h

Remaining uses of OVERRIDE was fixed by search+replace.

Manual edits were done to fix virtual destructors that were
overriding inherited ones.

Finally a build error related to the pure virtual definitions of
Read, Write and Rewind in common_types.h required a bit of
refactoring in:
* webrtc/common_types.cc
* webrtc/common_types.h
* webrtc/system_wrappers/interface/file_wrapper.h
* webrtc/system_wrappers/source/file_impl.cc

This roll should make it possible for us to finally re-enable deadlock
detection for TSan on the buildbots.

BUG=4106
R=pbos@webrtc.org, tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/41069004

Cr-Commit-Position: refs/heads/master@{#8596}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8596 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index 5029bc7..200aa8b 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -75,60 +75,49 @@
   }
 
   // GainControl implementation.
-  virtual int Enable(bool enable) OVERRIDE {
+  int Enable(bool enable) override {
     return real_gain_control_->Enable(enable);
   }
-  virtual bool is_enabled() const OVERRIDE {
-    return real_gain_control_->is_enabled();
-  }
-  virtual int set_stream_analog_level(int level) OVERRIDE {
+  bool is_enabled() const override { return real_gain_control_->is_enabled(); }
+  int set_stream_analog_level(int level) override {
     volume_ = level;
     return AudioProcessing::kNoError;
   }
-  virtual int stream_analog_level() OVERRIDE {
-    return volume_;
-  }
-  virtual int set_mode(Mode mode) OVERRIDE { return AudioProcessing::kNoError; }
-  virtual Mode mode() const OVERRIDE { return GainControl::kAdaptiveAnalog; }
-  virtual int set_target_level_dbfs(int level) OVERRIDE {
+  int stream_analog_level() override { return volume_; }
+  int set_mode(Mode mode) override { return AudioProcessing::kNoError; }
+  Mode mode() const override { return GainControl::kAdaptiveAnalog; }
+  int set_target_level_dbfs(int level) override {
     return AudioProcessing::kNoError;
   }
-  virtual int target_level_dbfs() const OVERRIDE {
+  int target_level_dbfs() const override {
     return real_gain_control_->target_level_dbfs();
   }
-  virtual int set_compression_gain_db(int gain) OVERRIDE {
+  int set_compression_gain_db(int gain) override {
     return AudioProcessing::kNoError;
   }
-  virtual int compression_gain_db() const OVERRIDE {
+  int compression_gain_db() const override {
     return real_gain_control_->compression_gain_db();
   }
-  virtual int enable_limiter(bool enable) OVERRIDE {
-    return AudioProcessing::kNoError;
-  }
-  virtual bool is_limiter_enabled() const OVERRIDE {
+  int enable_limiter(bool enable) override { return AudioProcessing::kNoError; }
+  bool is_limiter_enabled() const override {
     return real_gain_control_->is_limiter_enabled();
   }
-  virtual int set_analog_level_limits(int minimum,
-                                      int maximum) OVERRIDE {
+  int set_analog_level_limits(int minimum, int maximum) override {
     return AudioProcessing::kNoError;
   }
-  virtual int analog_level_minimum() const OVERRIDE {
+  int analog_level_minimum() const override {
     return real_gain_control_->analog_level_minimum();
   }
-  virtual int analog_level_maximum() const OVERRIDE {
+  int analog_level_maximum() const override {
     return real_gain_control_->analog_level_maximum();
   }
-  virtual bool stream_is_saturated() const OVERRIDE {
+  bool stream_is_saturated() const override {
     return real_gain_control_->stream_is_saturated();
   }
 
   // VolumeCallbacks implementation.
-  virtual void SetMicVolume(int volume) OVERRIDE {
-    volume_ = volume;
-  }
-  virtual int GetMicVolume() OVERRIDE {
-    return volume_;
-  }
+  void SetMicVolume(int volume) override { volume_ = volume; }
+  int GetMicVolume() override { return volume_; }
 
  private:
   GainControl* real_gain_control_;