[Mac] Implement a new WebSandboxSupport method to get the display's color space.

content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc

 // Copyright (c) 2012 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 "content/ppapi_plugin/ppapi_webkitplatformsupport_impl.h"
 
 #include <map>
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/threading/platform_thread.h"
 #include "build/build_config.h"
 #include "content/child/child_thread.h"
 #include "content/common/child_process_messages.h"
 #include "ppapi/proxy/plugin_globals.h"
 #include "ppapi/shared_impl/proxy_lock.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 
 #if defined(OS_WIN)
 #include "third_party/WebKit/public/platform/win/WebSandboxSupport.h"
 #elif defined(OS_MACOSX)
+#include "base/mac/mac_util.h"
 #include "third_party/WebKit/public/platform/mac/WebSandboxSupport.h"
 #elif defined(OS_ANDROID)
 #include "third_party/WebKit/public/platform/android/WebSandboxSupport.h"
 #elif defined(OS_POSIX)
 #include "content/common/child_process_sandbox_support_impl_linux.h"
 #include "third_party/WebKit/public/platform/linux/WebFallbackFont.h"
 #include "third_party/WebKit/public/platform/linux/WebSandboxSupport.h"
 #include "third_party/icu/source/common/unicode/utf16.h"
 #endif
 
 using blink::WebSandboxSupport;
 using blink::WebString;
 using blink::WebUChar;
 using blink::WebUChar32;
 
 typedef struct CGFont* CGFontRef;
 
 namespace content {
 
 class PpapiWebKitPlatformSupportImpl::SandboxSupport
     : public WebSandboxSupport {
  public:
   virtual ~SandboxSupport() {}
 
 #if defined(OS_WIN)
   virtual bool ensureFontLoaded(HFONT);
 #elif defined(OS_MACOSX)
   virtual bool loadFont(
       NSFont* srcFont, CGFontRef* out, uint32_t* fontID);
+  virtual CGColorSpaceRef displayColorSpace();
 #elif defined(OS_ANDROID)
   // Empty class.
 #elif defined(OS_POSIX)
   SandboxSupport();
   virtual void getFallbackFontForCharacter(
       WebUChar32 character,
       const char* preferred_locale,
       blink::WebFallbackFont* fallbackFont);
   virtual void getRenderStyleForStrike(
       const char* family, int sizeAndStyle, blink::WebFontRenderStyle* out);
@@ skipping 27 matching lines @@
     NSFont* src_font,
     CGFontRef* out,
     uint32_t* font_id) {
   // TODO(brettw) this should do the something similar to what
   // RendererWebKitClientImpl does and request that the browser load the font.
   // Note: need to unlock the proxy lock like ensureFontLoaded does.
   NOTIMPLEMENTED();
   return false;
 }
 
+CGColorSpaceRef
+PpapiWebKitPlatformSupportImpl::SandboxSupport::displayColorSpace() {
+  return base::mac::GetSystemColorSpace();

[Noel Gordon, 2014/09/10 07:22:36]

Why does ppapi need color profiles?  That'd allow user fingerprinting via
user-private information - their color profile.

+}
+
 #elif defined(OS_ANDROID)
 
 // Empty class.
 
 #elif defined(OS_POSIX)
 
 PpapiWebKitPlatformSupportImpl::SandboxSupport::SandboxSupport()
     : creation_thread_(base::PlatformThread::CurrentId()) {
 }
 
@@ skipping 144 matching lines @@
   NOTREACHED();
 }
 
 int PpapiWebKitPlatformSupportImpl::databaseDeleteFile(
     const blink::WebString& vfs_file_name, bool sync_dir) {
   NOTREACHED();
   return 0;
 }
 
 }  // namespace content