Remove Float32ImageData and update ImageData for color management

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp

Index: third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp
diff --git a/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp b/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp
index 77bedfa4a87b0e00b44897391efa685335493fb5..5c4ae21aec52ea2d4574b1281738c6f4dd96f75b 100644
--- a/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp
+++ b/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.cpp
@@ -31,16 +31,6 @@
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/Platform.h"
 
-constexpr const char* kLegacyCanvasColorSpaceName = "legacy-srgb";
-constexpr const char* kSRGBCanvasColorSpaceName = "srgb";
-constexpr const char* kRec2020CanvasColorSpaceName = "rec2020";
-constexpr const char* kP3CanvasColorSpaceName = "p3";
-
-constexpr const char* kRGBA8CanvasPixelFormatName = "8-8-8-8";
-constexpr const char* kRGB10A2CanvasPixelFormatName = "10-10-10-2";
-constexpr const char* kRGBA12CanvasPixelFormatName = "12-12-12-12";
-constexpr const char* kF16CanvasPixelFormatName = "float16";
-
 namespace blink {
 
 CanvasRenderingContext::CanvasRenderingContext(