Move some chrome\common code to content in preparation for moving chrome\gpu.

TBR=avi
Review URL: http://codereview.chromium.org/6686002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@77868 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 179 insertions, 0 deletions

diff --git a/content/common/sandbox_mac_fontloading_unittest.mm b/content/common/sandbox_mac_fontloading_unittest.mm
new file mode 100644
index 0000000..7df1bfe
--- /dev/null
+++ b/content/common/sandbox_mac_fontloading_unittest.mm
@@ -0,0 +1,179 @@
+// Copyright (c) 2011 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/file_util.h"
+#include "base/logging.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "base/scoped_ptr.h"
+#include "base/shared_memory.h"
+#include "content/common/font_loader_mac.h"
+#include "content/common/sandbox_mac_unittest_helper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+using sandboxtest::MacSandboxTest;
+using sandbox::Sandbox;
+
+bool CGFontFromFontContainer(ATSFontContainerRef container, CGFontRef* out) {
+  // Count the number of fonts that were loaded.
+  ItemCount fontCount = 0;
+  OSStatus err = ATSFontFindFromContainer(container, kATSOptionFlagsDefault, 0,
+                    NULL, &fontCount);
+
+  if (err != noErr || fontCount < 1) {
+    return false;
+  }
+
+  // Load font from container.
+  ATSFontRef font_ref_ats = 0;
+  ATSFontFindFromContainer(container, kATSOptionFlagsDefault, 1,
+      &font_ref_ats, NULL);
+
+  if (!font_ref_ats) {
+    return false;
+  }
+
+  // Convert to cgFont.
+  CGFontRef font_ref_cg = CGFontCreateWithPlatformFont(&font_ref_ats);
+
+  if (!font_ref_cg) {
+    return false;
+  }
+
+  *out = font_ref_cg;
+  return true;
+}
+
+class ScopedFontContainer {
+ public:
+  explicit ScopedFontContainer(ATSFontContainerRef ref)
+      : container_ref(ref) {}
+
+  ~ScopedFontContainer() {
+    ATSFontDeactivate(container_ref, NULL, kATSOptionFlagsDefault);
+  }
+
+  ATSFontContainerRef container_ref;
+};
+
+class FontLoadingTestCase : public sandboxtest::MacSandboxTestCase {
+ public:
+  FontLoadingTestCase() : font_data_length_(-1) {}
+  virtual bool BeforeSandboxInit();
+  virtual bool SandboxedTest();
+ private:
+  scoped_ptr<base::SharedMemory> font_shmem_;
+  size_t font_data_length_;
+};
+REGISTER_SANDBOX_TEST_CASE(FontLoadingTestCase);
+
+
+// Load raw font data into shared memory object.
+bool FontLoadingTestCase::BeforeSandboxInit() {
+  std::string font_data;
+  if (!file_util::ReadFileToString(FilePath(test_data_.c_str()), &font_data)) {
+    LOG(ERROR) << "Failed to read font data from file (" << test_data_ << ")";
+    return false;
+  }
+
+  font_data_length_ = font_data.length();
+  if (font_data_length_ <= 0) {
+    LOG(ERROR) << "No font data: " << font_data_length_;
+    return false;
+  }
+
+  font_shmem_.reset(new base::SharedMemory);
+  if (!font_shmem_.get()) {
+    LOG(ERROR) << "Failed to create shared memory object.";
+    return false;
+  }
+
+  if (!font_shmem_->CreateAndMapAnonymous(font_data_length_)) {
+    LOG(ERROR) << "SharedMemory::Create failed";
+    return false;
+  }
+
+  memcpy(font_shmem_->memory(), font_data.c_str(), font_data_length_);
+  if (!font_shmem_->Unmap())  {
+    LOG(ERROR) << "SharedMemory::Unmap failed";
+    return false;
+  }
+  return true;
+}
+
+bool FontLoadingTestCase::SandboxedTest() {
+  base::SharedMemoryHandle shmem_handle;
+  if (!font_shmem_->ShareToProcess(NULL, &shmem_handle)) {
+    LOG(ERROR) << "SharedMemory::ShareToProcess failed";
+    return false;
+  }
+
+  ATSFontContainerRef font_container;
+  if (!FontLoader::ATSFontContainerFromBuffer(shmem_handle, font_data_length_,
+          &font_container)) {
+    LOG(ERROR) << "Call to CreateCGFontFromBuffer() failed";
+    return false;
+  }
+
+  // Unload the font container when done.
+  ScopedFontContainer scoped_unloader(font_container);
+
+  CGFontRef cg_font_ref;
+  if (!CGFontFromFontContainer(font_container, &cg_font_ref)) {
+    LOG(ERROR) << "CGFontFromFontContainer failed";
+    return false;
+  }
+
+  if (!cg_font_ref) {
+    LOG(ERROR) << "Got NULL CGFontRef";
+    return false;
+  }
+  base::mac::ScopedCFTypeRef<CGFontRef> cgfont(cg_font_ref);
+
+  CTFontRef ct_font_ref =
+      CTFontCreateWithGraphicsFont(cgfont.get(), 16.0, NULL, NULL);
+  base::mac::ScopedCFTypeRef<CTFontRef> ctfont(ct_font_ref);
+
+  if (!ct_font_ref) {
+    LOG(ERROR) << "CTFontCreateWithGraphicsFont() failed";
+    return false;
+  }
+
+  // Do something with the font to make sure it's loaded.
+  CGFloat cap_height = CTFontGetCapHeight(ct_font_ref);
+
+  if (cap_height <= 0.0) {
+    LOG(ERROR) << "Got bad value for CTFontGetCapHeight " << cap_height;
+    return false;
+  }
+
+  return true;
+}
+
+TEST_F(MacSandboxTest, FontLoadingTest) {
+  FilePath temp_file_path;
+  FILE* temp_file = file_util::CreateAndOpenTemporaryFile(&temp_file_path);
+  ASSERT_TRUE(temp_file);
+  file_util::ScopedFILE temp_file_closer(temp_file);
+
+  base::SharedMemory font_data;
+  uint32 font_data_size;
+  NSFont* srcFont = [NSFont fontWithName:@"Geeza Pro" size:16.0];
+  EXPECT_TRUE(FontLoader::LoadFontIntoBuffer(srcFont,
+                  &font_data, &font_data_size));
+  EXPECT_GT(font_data_size, 0U);
+
+  file_util::WriteFileDescriptor(fileno(temp_file),
+      static_cast<const char *>(font_data.memory()), font_data_size);
+
+  ASSERT_TRUE(RunTestInSandbox(Sandbox::SANDBOX_TYPE_RENDERER,
+                  "FontLoadingTestCase", temp_file_path.value().c_str()));
+  temp_file_closer.reset();
+  ASSERT_TRUE(file_util::Delete(temp_file_path, false));
+}
+
+}  // namespace