Avoid base::RefCountedBytes's data copying ctor.

Use base::RefCountedBytes::TakeVector() or base::RefCountedStaticMemory
instead.

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I6bf4cdc2b0dff5f8c75e3a8dacda0da92213a9fb
Reviewed-on: https://chromium-review.googlesource.com/979398Reviewed-by: Antoine Labour <piman@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#546015}

chrome/browser/ui/webui/print_preview/extension_printer_handler_unittest.cc

@@ -675,8 +675,8 @@ TEST_F(ExtensionPrinterHandlerTest, Print_Pdf) {
   bool success = false;
   std::string status;
 
-  auto print_data =
-      base::MakeRefCounted<base::RefCountedBytes>(kPrintData, kPrintDataLength);
+  auto print_data = base::MakeRefCounted<base::RefCountedStaticMemory>(
+      kPrintData, kPrintDataLength);
   base::string16 title = base::ASCIIToUTF16("Title");
 
   extension_printer_handler_->StartPrint(

content/browser/frame_host/navigation_entry_screenshot_manager.cc

@@ -7,6 +7,7 @@
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/ref_counted_memory.h"
 #include "base/task_scheduler/post_task.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
@@ -72,7 +73,7 @@ class ScreenshotData : public base::RefCountedThreadSafe<ScreenshotData> {
     // Encode the A8 bitmap to grayscale PNG treating alpha as color intensity.
     std::vector<unsigned char> data;
     if (gfx::PNGCodec::EncodeA8SkBitmap(grayscale_bitmap, &data))
-      data_ = new base::RefCountedBytes(data);
+      data_ = base::RefCountedBytes::TakeVector(&data);
   }
 
   scoped_refptr<base::RefCountedBytes> data_;

gpu/command_buffer/tests/gl_manager.cc

@@ -239,7 +239,7 @@ std::unique_ptr<gfx::GpuMemoryBuffer> GLManager::CreateGpuMemoryBuffer(
   }
 #endif  // defined(OS_MACOSX)
   std::vector<uint8_t> data(gfx::BufferSizeForBufferFormat(size, format), 0);
-  scoped_refptr<base::RefCountedBytes> bytes(new base::RefCountedBytes(data));
+  auto bytes = base::RefCountedBytes::TakeVector(&data);
   return base::WrapUnique<gfx::GpuMemoryBuffer>(
       new GpuMemoryBufferImpl(bytes.get(), size, format));
 }