Revert of [Mac] Implement a new WebSandboxSupport method to get the display's...

Revert of [Mac] Implement a new WebSandboxSupport method to get the display's color space. (patchset #1 id:1 of https://codereview.chromium.org/549213004/)

Reason for revert:
Not needed, used https://codereview.chromium.org/554033002 instead.

Original issue's description:
> [Mac] Implement a new WebSandboxSupport method to get the display's color space.
>
> This new interface is defined at https://codereview.chromium.org/554033002/.
>
> BUG=397642,306348
> R=avi@chromium.org
>
> Committed: https://crrev.com/b6ae4d0ecc983a71a32ab1480a70e065c718c195
> Cr-Commit-Position: refs/heads/master@{#293852}

TBR=avi@chromium.org,rsesek@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=397642,306348

Review URL: https://codereview.chromium.org/563943003

Cr-Commit-Position: refs/heads/master@{#294786}

content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc

@@ -19,7 +19,6 @@
 #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"
@@ -49,7 +48,6 @@ class PpapiWebKitPlatformSupportImpl::SandboxSupport
 #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)
@@ -97,11 +95,6 @@ bool PpapiWebKitPlatformSupportImpl::SandboxSupport::loadFont(
   return false;
 }
 
-CGColorSpaceRef
-PpapiWebKitPlatformSupportImpl::SandboxSupport::displayColorSpace() {
-  return base::mac::GetSystemColorSpace();
-}
-
 #elif defined(OS_ANDROID)
 
 // Empty class.

content/renderer/renderer_webkitplatformsupport_impl.cc

@@ -84,7 +84,6 @@
 #endif
 
 #if defined(OS_MACOSX)
-#include "base/mac/mac_util.h"
 #include "content/common/mac/font_descriptor.h"
 #include "content/common/mac/font_loader.h"
 #include "content/renderer/webscrollbarbehavior_impl_mac.h"
@@ -203,7 +202,6 @@ class RendererWebKitPlatformSupportImpl::SandboxSupport
       NSFont* src_font,
       CGFontRef* container,
       uint32* font_id);
-  virtual CGColorSpaceRef displayColorSpace();
 #elif defined(OS_POSIX)
   virtual void getFallbackFontForCharacter(
       blink::WebUChar32 character,
@@ -575,11 +573,6 @@ bool RendererWebKitPlatformSupportImpl::SandboxSupport::loadFont(
   return FontLoader::CGFontRefFromBuffer(font_data, font_data_size, out);
 }
 
-CGColorSpaceRef
-RendererWebKitPlatformSupportImpl::SandboxSupport::displayColorSpace() {
-  return base::mac::GetSystemColorSpace();
-}
-
 #elif defined(OS_ANDROID)
 
 // WebKit doesn't use WebSandboxSupport on android so we don't need to