[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/core/html/ImageData.cpp

Index: third_party/WebKit/Source/core/html/ImageData.cpp
diff --git a/third_party/WebKit/Source/core/html/ImageData.cpp b/third_party/WebKit/Source/core/html/ImageData.cpp
index f2a9f3fab30b664efc1d527d2fbf85f76a0b059a..5e84dff62ad35fb8127906198c80d205323b7973 100644
--- a/third_party/WebKit/Source/core/html/ImageData.cpp
+++ b/third_party/WebKit/Source/core/html/ImageData.cpp
@@ -205,22 +205,30 @@ ImageData* ImageData::createForTest(const IntSize& size) {
   return new ImageData(size, byteArray);
 }
 
-ImageData* ImageData::create(const IntSize& size,
-                             DOMUint8ClampedArray* byteArray) {
+ImageData* ImageData::create(
+    const IntSize& size,
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, nullptr))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(kParamSize | kParamData, &size,
-                                               0, 0, byteArray))
+                                               0, 0, data))
     return nullptr;
-  return new ImageData(size, byteArray);
+  return new ImageData(size, data);
 }
 
-ImageData* ImageData::create(const IntSize& size,
-                             DOMUint8ClampedArray* byteArray,
-                             const String& colorSpace) {
+ImageData* ImageData::create(
+    const IntSize& size,
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared,
+    const String& colorSpace) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, nullptr))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(
-          kParamSize | kParamData | kParamColorSpace, &size, 0, 0, byteArray,
+          kParamSize | kParamData | kParamColorSpace, &size, 0, 0, data,
           &colorSpace))
     return nullptr;
-  return new ImageData(size, byteArray, colorSpace);
+  return new ImageData(size, data, colorSpace);
 }
 
 ImageData* ImageData::create(unsigned width,
@@ -236,9 +244,13 @@ ImageData* ImageData::create(unsigned width,
   return byteArray ? new ImageData(IntSize(width, height), byteArray) : nullptr;
 }
 
-ImageData* ImageData::create(DOMUint8ClampedArray* data,
-                             unsigned width,
-                             ExceptionState& exceptionState) {
+ImageData* ImageData::create(
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared,
+    unsigned width,
+    ExceptionState& exceptionState) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, &exceptionState))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(kParamData | kParamWidth,
                                                nullptr, width, 0, data, nullptr,
                                                &exceptionState))
@@ -247,10 +259,14 @@ ImageData* ImageData::create(DOMUint8ClampedArray* data,
   return new ImageData(IntSize(width, height), data);
 }
 
-ImageData* ImageData::create(DOMUint8ClampedArray* data,
-                             unsigned width,
-                             unsigned height,
-                             ExceptionState& exceptionState) {
+ImageData* ImageData::create(
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared,
+    unsigned width,
+    unsigned height,
+    ExceptionState& exceptionState) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, &exceptionState))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(
           kParamData | kParamWidth | kParamHeight, nullptr, width, height, data,
           nullptr, &exceptionState))
@@ -275,10 +291,14 @@ ImageData* ImageData::createImageData(unsigned width,
              : nullptr;
 }
 
-ImageData* ImageData::createImageData(DOMUint8ClampedArray* data,
-                                      unsigned width,
-                                      String colorSpace,
-                                      ExceptionState& exceptionState) {
+ImageData* ImageData::createImageData(
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared,
+    unsigned width,
+    String colorSpace,
+    ExceptionState& exceptionState) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, &exceptionState))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(
           kParamData | kParamWidth | kParamColorSpace, nullptr, width, 0, data,
           &colorSpace, &exceptionState))
@@ -287,11 +307,15 @@ ImageData* ImageData::createImageData(DOMUint8ClampedArray* data,
   return new ImageData(IntSize(width, height), data, colorSpace);
 }
 
-ImageData* ImageData::createImageData(DOMUint8ClampedArray* data,
-                                      unsigned width,
-                                      unsigned height,
-                                      String colorSpace,
-                                      ExceptionState& exceptionState) {
+ImageData* ImageData::createImageData(
+    const MaybeShared<DOMUint8ClampedArray>& maybeShared,
+    unsigned width,
+    unsigned height,
+    String colorSpace,
+    ExceptionState& exceptionState) {
+  if (!ImageData::validateDataArgumentIsNotShared(maybeShared, &exceptionState))
+    return nullptr;
+  DOMUint8ClampedArray* data = maybeShared.viewNotShared();
   if (!ImageData::validateConstructorArguments(
           kParamData | kParamWidth | kParamHeight | kParamColorSpace, nullptr,
           width, height, data, &colorSpace, &exceptionState))