Clang format slam.

net/filter/filter.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/filter/filter.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/string_util.h"
 #include "net/base/filename_util.h"
 #include "net/base/io_buffer.h"
 #include "net/base/mime_util.h"
 #include "net/filter/gzip_filter.h"
 #include "net/filter/sdch_filter.h"
 #include "url/gurl.h"
 
 namespace {
 
 // Filter types (using canonical lower case only):
-const char kDeflate[]      = "deflate";
-const char kGZip[]         = "gzip";
-const char kXGZip[]        = "x-gzip";
-const char kSdch[]         = "sdch";
+const char kDeflate[] = "deflate";
+const char kGZip[] = "gzip";
+const char kXGZip[] = "x-gzip";
+const char kSdch[] = "sdch";
 // compress and x-compress are currently not supported.  If we decide to support
 // them, we'll need the same mime type compatibility hack we have for gzip.  For
 // more information, see Firefox's nsHttpChannel::ProcessNormal.
 
 // Mime types:
-const char kApplicationXGzip[]     = "application/x-gzip";
-const char kApplicationGzip[]      = "application/gzip";
-const char kApplicationXGunzip[]   = "application/x-gunzip";
-const char kTextHtml[]             = "text/html";
+const char kApplicationXGzip[] = "application/x-gzip";
+const char kApplicationGzip[] = "application/gzip";
+const char kApplicationXGunzip[] = "application/x-gunzip";
+const char kTextHtml[] = "text/html";
 
 // Buffer size allocated when de-compressing data.
 const int kFilterBufSize = 32 * 1024;
 
 }  // namespace
 
 namespace net {
 
 FilterContext::~FilterContext() {
 }
 
-Filter::~Filter() {}
+Filter::~Filter() {
+}
 
 // static
 Filter* Filter::Factory(const std::vector<FilterType>& filter_types,
                         const FilterContext& filter_context) {
   if (filter_types.empty())
     return NULL;
 
   Filter* filter_list = NULL;  // Linked list of filters.
   for (size_t i = 0; i < filter_types.size(); i++) {
-    filter_list = PrependNewFilter(filter_types[i], filter_context,
-                                   kFilterBufSize, filter_list);
+    filter_list = PrependNewFilter(
+        filter_types[i], filter_context, kFilterBufSize, filter_list);
     if (!filter_list)
       return NULL;
   }
   return filter_list;
 }
 
 // static
 Filter* Filter::GZipFactory() {
   return InitGZipFilter(FILTER_TYPE_GZIP, kFilterBufSize);
 }
 
 // static
 Filter* Filter::FactoryForTests(const std::vector<FilterType>& filter_types,
                                 const FilterContext& filter_context,
                                 int buffer_size) {
   if (filter_types.empty())
     return NULL;
 
   Filter* filter_list = NULL;  // Linked list of filters.
   for (size_t i = 0; i < filter_types.size(); i++) {
-    filter_list = PrependNewFilter(filter_types[i], filter_context,
-                                   buffer_size, filter_list);
+    filter_list = PrependNewFilter(
+        filter_types[i], filter_context, buffer_size, filter_list);
     if (!filter_list)
       return NULL;
   }
   return filter_list;
 }
 
 Filter::FilterStatus Filter::ReadData(char* dest_buffer, int* dest_len) {
   const int dest_buffer_capacity = *dest_len;
   if (last_status_ == FILTER_ERROR)
     return last_status_;
   if (!next_filter_.get())
     return last_status_ = ReadFilteredData(dest_buffer, dest_len);
   if (last_status_ == FILTER_NEED_MORE_DATA && !stream_data_len())
     return next_filter_->ReadData(dest_buffer, dest_len);
 
   do {
     if (next_filter_->last_status() == FILTER_NEED_MORE_DATA) {
       PushDataIntoNextFilter();
       if (FILTER_ERROR == last_status_)
         return FILTER_ERROR;
     }
     *dest_len = dest_buffer_capacity;  // Reset the input/output parameter.
     next_filter_->ReadData(dest_buffer, dest_len);
     if (FILTER_NEED_MORE_DATA == last_status_)
-        return next_filter_->last_status();
+      return next_filter_->last_status();
 
     // In the case where this filter has data internally, and is indicating such
     // with a last_status_ of FILTER_OK, but at the same time the next filter in
     // the chain indicated it FILTER_NEED_MORE_DATA, we have to be cautious
     // about confusing the caller.  The API confusion can appear if we return
     // FILTER_OK (suggesting we have more data in aggregate), but yet we don't
     // populate our output buffer.  When that is the case, we need to
     // alternately call our filter element, and the next_filter element until we
     // get out of this state (by pumping data into the next filter until it
     // outputs data, or it runs out of data and reports that it NEED_MORE_DATA.)
@@ skipping 34 matching lines @@
     type_id = FILTER_TYPE_SDCH;
   } else {
     // Note we also consider "identity" and "uncompressed" UNSUPPORTED as
     // filter should be disabled in such cases.
     type_id = FILTER_TYPE_UNSUPPORTED;
   }
   return type_id;
 }
 
 // static
-void Filter::FixupEncodingTypes(
-    const FilterContext& filter_context,
-    std::vector<FilterType>* encoding_types) {
+void Filter::FixupEncodingTypes(const FilterContext& filter_context,
+                                std::vector<FilterType>* encoding_types) {
   std::string mime_type;
   bool success = filter_context.GetMimeType(&mime_type);
   DCHECK(success || mime_type.empty());
 
   if ((1 == encoding_types->size()) &&
       (FILTER_TYPE_GZIP == encoding_types->front())) {
     if (LowerCaseEqualsASCII(mime_type, kApplicationXGzip) ||
         LowerCaseEqualsASCII(mime_type, kApplicationGzip) ||
         LowerCaseEqualsASCII(mime_type, kApplicationXGunzip))
       // The server has told us that it sent us gziped content with a gzip
       // content encoding.  Sadly, Apache mistakenly sets these headers for all
       // .gz files.  We match Firefox's nsHttpChannel::ProcessNormal and ignore
       // the Content-Encoding here.
       encoding_types->clear();
 
     GURL url;
     std::string disposition;
     success = filter_context.GetURL(&url);
     DCHECK(success);
     filter_context.GetContentDisposition(&disposition);
     // Don't supply a MIME type here, since that may cause disk IO.
-    base::FilePath filepath = GenerateFileName(url, disposition, "UTF-8", "",
-                                               "", "");
+    base::FilePath filepath =
+        GenerateFileName(url, disposition, "UTF-8", "", "", "");
     base::FilePath::StringType extension = filepath.Extension();
 
     if (filter_context.IsDownload()) {
       // We don't want to decompress gzipped files when the user explicitly
       // asks to download them.
       // For the case of svgz files, we use the extension to distinguish
       // between svgz files and svg files compressed with gzip by the server.
       // When viewing a .svgz file, we need to uncompress it, but we don't
       // want to do that when downloading.
       // See Firefox's nonDecodableExtensions in nsExternalHelperAppService.cpp
@@ skipping 16 matching lines @@
   // If the request was for SDCH content, then we might need additional fixups.
   if (!filter_context.IsSdchResponse()) {
     // It was not an SDCH request, so we'll just record stats.
     if (1 < encoding_types->size()) {
       // Multiple filters were intended to only be used for SDCH (thus far!)
       SdchManager::SdchErrorRecovery(
           SdchManager::MULTIENCODING_FOR_NON_SDCH_REQUEST);
     }
     if ((1 == encoding_types->size()) &&
         (FILTER_TYPE_SDCH == encoding_types->front())) {
-        SdchManager::SdchErrorRecovery(
-            SdchManager::SDCH_CONTENT_ENCODE_FOR_NON_SDCH_REQUEST);
+      SdchManager::SdchErrorRecovery(
+          SdchManager::SDCH_CONTENT_ENCODE_FOR_NON_SDCH_REQUEST);
     }
     return;
   }
 
   // The request was tagged as an SDCH request, which means the server supplied
   // a dictionary, and we advertised it in the request.  Some proxies will do
   // very strange things to the request, or the response, so we have to handle
   // them gracefully.
 
   // If content encoding included SDCH, then everything is "relatively" fine.
@@ skipping 34 matching lines @@
   // The one unresolved failure mode comes when we advertise a dictionary, and
   // the server tries to *send* a gzipped file (not gzip encode content), and
   // then we could do a gzip decode :-(. Since SDCH is only (currently)
   // supported server side on paths that only send HTML content, this mode has
   // never surfaced in the wild (and is unlikely to).
   // We will gather a lot of stats as we perform the fixups
   if (StartsWithASCII(mime_type, kTextHtml, false)) {
     // Suspicious case: Advertised dictionary, but server didn't use sdch, and
     // we're HTML tagged.
     if (encoding_types->empty()) {
-      SdchManager::SdchErrorRecovery(
-          SdchManager::ADDED_CONTENT_ENCODING);
+      SdchManager::SdchErrorRecovery(SdchManager::ADDED_CONTENT_ENCODING);
     } else if (1 == encoding_types->size()) {
-      SdchManager::SdchErrorRecovery(
-          SdchManager::FIXED_CONTENT_ENCODING);
+      SdchManager::SdchErrorRecovery(SdchManager::FIXED_CONTENT_ENCODING);
     } else {
-      SdchManager::SdchErrorRecovery(
-          SdchManager::FIXED_CONTENT_ENCODINGS);
+      SdchManager::SdchErrorRecovery(SdchManager::FIXED_CONTENT_ENCODINGS);
     }
   } else {
     // Remarkable case!?!  We advertised an SDCH dictionary, content-encoding
     // was not marked for SDCH processing: Why did the server suggest an SDCH
     // dictionary in the first place??.  Also, the content isn't
     // tagged as HTML, despite the fact that SDCH encoding is mostly likely for
     // HTML: Did some anti-virus system strip this tag (sometimes they strip
     // accept-encoding headers on the request)??  Does the content encoding not
     // start with "text/html" for some other reason??  We'll report this as a
     // fixup to a binary file, but it probably really is text/html (some how).
@@ skipping 22 matching lines @@
                          FILTER_TYPE_GZIP_HELPING_SDCH);
   encoding_types->insert(encoding_types->begin(), FILTER_TYPE_SDCH_POSSIBLE);
   return;
 }
 
 Filter::Filter()
     : stream_buffer_(NULL),
       stream_buffer_size_(0),
       next_stream_data_(NULL),
       stream_data_len_(0),
-      last_status_(FILTER_NEED_MORE_DATA) {}
+      last_status_(FILTER_NEED_MORE_DATA) {
+}
 
 Filter::FilterStatus Filter::CopyOut(char* dest_buffer, int* dest_len) {
   int out_len;
   int input_len = *dest_len;
   *dest_len = 0;
 
   if (0 == stream_data_len_)
     return Filter::FILTER_NEED_MORE_DATA;
 
   out_len = std::min(input_len, stream_data_len_);
@@ skipping 64 matching lines @@
 
 void Filter::PushDataIntoNextFilter() {
   IOBuffer* next_buffer = next_filter_->stream_buffer();
   int next_size = next_filter_->stream_buffer_size();
   last_status_ = ReadFilteredData(next_buffer->data(), &next_size);
   if (FILTER_ERROR != last_status_)
     next_filter_->FlushStreamBuffer(next_size);
 }
 
 }  // namespace net