diff --git a/libs/hwui/Matrix.h b/libs/hwui/Matrix.h
index f0a3a95..9f3c021 100644
--- a/libs/hwui/Matrix.h
+++ b/libs/hwui/Matrix.h
@@ -80,7 +80,7 @@
 
     explicit Matrix4(const float* v) { load(v); }
 
-    Matrix4(const SkMatrix& v) {  // NOLINT, implicit
+    Matrix4(const SkMatrix& v) {  // NOLINT(google-explicit-constructor)
         load(v);
     }
 
diff --git a/libs/hwui/Rect.h b/libs/hwui/Rect.h
index 0715187..320190f 100644
--- a/libs/hwui/Rect.h
+++ b/libs/hwui/Rect.h
@@ -57,15 +57,15 @@
 
     inline Rect(float width, float height) : left(0.0f), top(0.0f), right(width), bottom(height) {}
 
-    inline Rect(const SkIRect& rect)
-            :  // NOLINT, implicit
+    inline Rect(const SkIRect& rect) // NOLINT(google-explicit-constructor)
+            :
             left(rect.fLeft)
             , top(rect.fTop)
             , right(rect.fRight)
             , bottom(rect.fBottom) {}
 
-    inline Rect(const SkRect& rect)
-            :  // NOLINT, implicit
+    inline Rect(const SkRect& rect) // NOLINT(google-explicit-constructor)
+            :
             left(rect.fLeft)
             , top(rect.fTop)
             , right(rect.fRight)
diff --git a/libs/hwui/debug/GlesErrorCheckWrapper.h b/libs/hwui/debug/GlesErrorCheckWrapper.h
index ee5cc1f..791400b 100644
--- a/libs/hwui/debug/GlesErrorCheckWrapper.h
+++ b/libs/hwui/debug/GlesErrorCheckWrapper.h
@@ -24,7 +24,7 @@
 
 class GlesErrorCheckWrapper : public GlesDriver {
 public:
-    GlesErrorCheckWrapper(GlesDriver& base) : mBase(base) {}
+    explicit GlesErrorCheckWrapper(GlesDriver& base) : mBase(base) {}
 
 #define GL_ENTRY(ret, api, ...) virtual ret api##_(__VA_ARGS__) override;
 #include "gles_decls.in"
diff --git a/libs/hwui/hwui/Paint.h b/libs/hwui/hwui/Paint.h
index 002f759..e4d81c1 100644
--- a/libs/hwui/hwui/Paint.h
+++ b/libs/hwui/hwui/Paint.h
@@ -45,7 +45,7 @@
 
     Paint();
     Paint(const Paint& paint);
-    Paint(const SkPaint& paint);  // NOLINT(implicit)
+    Paint(const SkPaint& paint);  // NOLINT(google-explicit-constructor)
     ~Paint();
 
     Paint& operator=(const Paint& other);
diff --git a/libs/hwui/service/GraphicsStatsService.cpp b/libs/hwui/service/GraphicsStatsService.cpp
index 29e4256..8a16b20 100644
--- a/libs/hwui/service/GraphicsStatsService.cpp
+++ b/libs/hwui/service/GraphicsStatsService.cpp
@@ -48,7 +48,7 @@
 
 class FileDescriptor {
 public:
-    FileDescriptor(int fd) : mFd(fd) {}
+    explicit FileDescriptor(int fd) : mFd(fd) {}
     ~FileDescriptor() {
         if (mFd != -1) {
             close(mFd);
@@ -56,7 +56,7 @@
         }
     }
     bool valid() { return mFd != -1; }
-    operator int() { return mFd; }
+    operator int() { return mFd; } // NOLINT(google-explicit-constructor)
 
 private:
     int mFd;
@@ -64,7 +64,7 @@
 
 class FileOutputStreamLite : public io::ZeroCopyOutputStream {
 public:
-    FileOutputStreamLite(int fd) : mCopyAdapter(fd), mImpl(&mCopyAdapter) {}
+    explicit FileOutputStreamLite(int fd) : mCopyAdapter(fd), mImpl(&mCopyAdapter) {}
     virtual ~FileOutputStreamLite() {}
 
     int GetErrno() { return mCopyAdapter.mErrno; }
@@ -82,7 +82,7 @@
         int mFd;
         int mErrno = 0;
 
-        FDAdapter(int fd) : mFd(fd) {}
+        explicit FDAdapter(int fd) : mFd(fd) {}
         virtual ~FDAdapter() {}
 
         virtual bool Write(const void* buffer, int size) override {
diff --git a/libs/hwui/utils/LinearAllocator.h b/libs/hwui/utils/LinearAllocator.h
index 03f685e..16cf52f 100644
--- a/libs/hwui/utils/LinearAllocator.h
+++ b/libs/hwui/utils/LinearAllocator.h
@@ -168,7 +168,7 @@
     };
     // enable allocators to be constructed from other templated types
     template <class U>
-    LinearStdAllocator(const LinearStdAllocator<U>& other)  // NOLINT(implicit)
+    LinearStdAllocator(const LinearStdAllocator<U>& other)  // NOLINT(google-explicit-constructor)
             : linearAllocator(other.linearAllocator) {}
 
     T* allocate(size_t num, const void* = 0) {