[ABANDONED] Get content of resources from Blob when the downloadToFile option is enabled

Source/core/inspector/NetworkResourcesData.cpp

Index: Source/core/inspector/NetworkResourcesData.cpp
diff --git a/Source/core/inspector/NetworkResourcesData.cpp b/Source/core/inspector/NetworkResourcesData.cpp
index dab7c31bde2f38c46ef9769c39aef63ed1fbe554..ebfe00042e7f661e485cf5cc193999719bde927b 100644
--- a/Source/core/inspector/NetworkResourcesData.cpp
+++ b/Source/core/inspector/NetworkResourcesData.cpp
@@ -80,10 +80,20 @@ void NetworkResourcesData::ResourceData::setContent(const String& content, bool
 {
     ASSERT(!hasData());
     ASSERT(!hasContent());
+    ASSERT(!hasBlob());
     m_content = content;
     m_base64Encoded = base64Encoded;
 }
 
+void NetworkResourcesData::ResourceData::setBlob(PassRefPtr<Blob> blob, const String& textEncodingName)
+{
+    ASSERT(!hasData());
+    ASSERT(!hasContent());
+    ASSERT(!hasBlob());
+    m_blob = blob;
+    m_blobTextEncodingName = textEncodingName;
+}
+
 static size_t contentSizeInBytes(const String& content)
 {
     return content.isNull() ? 0 : content.impl()->sizeInBytes();
@@ -93,16 +103,23 @@ unsigned NetworkResourcesData::ResourceData::removeContent()
 {
     unsigned result = 0;
     if (hasData()) {
-        ASSERT(!hasContent());
+        ASSERT(!hasContent() && !hasBlob());
         result = m_dataBuffer->size();
         m_dataBuffer = nullptr;
     }
 
     if (hasContent()) {
-        ASSERT(!hasData());
+        ASSERT(!hasData() && !hasBlob());
         result = contentSizeInBytes(m_content);
         m_content = String();
     }
+
+    if (hasBlob()) {
+        ASSERT(!hasData() && !hasContent());
+        result = m_blob->size();
+        m_blob = nullptr;
+        m_blobTextEncodingName = String();
+    }
     return result;
 }
 
@@ -119,7 +136,7 @@ size_t NetworkResourcesData::ResourceData::dataLength() const
 
 void NetworkResourcesData::ResourceData::appendData(const char* data, size_t dataLength)
 {
-    ASSERT(!hasContent());
+    ASSERT(!hasContent() && !hasBlob());
     if (!m_dataBuffer)
         m_dataBuffer = SharedBuffer::create(data, dataLength);
     else
@@ -128,7 +145,7 @@ void NetworkResourcesData::ResourceData::appendData(const char* data, size_t dat
 
 size_t NetworkResourcesData::ResourceData::decodeDataToContent()
 {
-    ASSERT(!hasContent());
+    ASSERT(!hasContent() && !hasBlob());
     size_t dataLength = m_dataBuffer->size();
     m_content = m_decoder->decode(m_dataBuffer->data(), m_dataBuffer->size());
     m_content.append(m_decoder->flush());
@@ -209,7 +226,7 @@ void NetworkResourcesData::setResourceContent(const String& requestId, const Str
         return;
     if (ensureFreeSpace(dataLength) && !resourceData->isContentEvicted()) {
         // We can not be sure that we didn't try to save this request data while it was loading, so remove it, if any.
-        if (resourceData->hasContent())
+        if (resourceData->hasContent() || resourceData->hasBlob())
             m_contentSize -= resourceData->removeContent();
         m_requestIdsDeque.append(requestId);
         resourceData->setContent(content, base64Encoded);
@@ -217,6 +234,27 @@ void NetworkResourcesData::setResourceContent(const String& requestId, const Str
     }
 }
 
+void NetworkResourcesData::setResourceBlob(const String& requestId, PassRefPtr<Blob> prpBlob, const String& textEncodingName)
+{
+    RefPtr<Blob> blob = prpBlob;
+    ResourceData* resourceData = resourceDataForRequestId(requestId);
+    if (!resourceData)
+        return;
+    size_t dataLength = blob->size();
+    if (dataLength > m_maximumSingleResourceContentSize)
+        return;
+    if (resourceData->isContentEvicted())
+        return;
+    if (ensureFreeSpace(dataLength) && !resourceData->isContentEvicted()) {
+        // We can not be sure that we didn't try to save this request data while it was loading, so remove it, if any.
+        if (resourceData->hasContent() || resourceData->hasBlob())
+            m_contentSize -= resourceData->removeContent();
+        m_requestIdsDeque.append(requestId);
+        resourceData->setBlob(blob, textEncodingName);
+        m_contentSize += dataLength;
+    }
+}
+
 void NetworkResourcesData::maybeAddResourceData(const String& requestId, const char* data, size_t dataLength)
 {
     ResourceData* resourceData = resourceDataForRequestId(requestId);
@@ -366,7 +404,7 @@ void NetworkResourcesData::ensureNoDataForRequestId(const String& requestId)
     ResourceData* resourceData = resourceDataForRequestId(requestId);
     if (!resourceData)
         return;
-    if (resourceData->hasContent() || resourceData->hasData())
+    if (resourceData->hasContent() || resourceData->hasData() || resourceData->hasBlob())
         m_contentSize -= resourceData->evictContent();
     delete resourceData;
     m_requestIdToResourceDataMap.remove(requestId);