DevTools: [Android] implement RenderWidgetHostViewAndroid::CopyFromCompositingSurface

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index cfd19dbc04c026a133d8cf8f6ab3e1a0dd09e7f8..385b5f4c520092284dbe0ea738f7b55932231c5e 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -61,8 +61,10 @@ using base::android::ConvertJavaStringToUTF16;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF16ToJavaString;
 using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaByteArrayToByteVector;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
+using base::android::HasException;
 using WebKit::WebGestureEvent;
 using WebKit::WebInputEvent;
 
@@ -699,6 +701,19 @@ void ContentViewCoreImpl::SetNeedsAnimate() {
   Java_ContentViewCore_setNeedsAnimate(env, obj.obj());
 }
 
+bool ContentViewCoreImpl::GrabSnapshot(std::vector<unsigned uint8>* png) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return false;
+  ScopedJavaLocalRef<jbyteArray> data_ref =
+      Java_ContentViewCore_grabSnapshot(env, obj.obj());
+  if (HasException(env) || data_ref.is_null())
+    return false;
+  JavaByteArrayToByteVector(env, data_ref.obj(), png);
+  return true;
+}
+
 ui::ViewAndroid* ContentViewCoreImpl::GetViewAndroid() const {
   // view_android_ should never be null for Chrome.
   DCHECK(view_android_);