Enable CopyTextureCHROMIUM in Blink for Tex{Sub}Image2D with more cases

third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp

Index: third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp b/third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp
index 274dd96676954690acf2532483fcc007b2855bf4..77096b9ad2678801122534b0a49ad4ff34c7baf0 100644
--- a/third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp
+++ b/third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp
@@ -684,10 +684,8 @@ bool DrawingBuffer::initialize(const IntSize& size, bool useMultisampling) {
 }
 
 bool DrawingBuffer::copyToPlatformTexture(gpu::gles2::GLES2Interface* gl,
+                                          GLenum textureTarget,
                                           GLuint texture,
-                                          GLenum internalFormat,
-                                          GLenum destType,
-                                          GLint level,
                                           bool premultiplyAlpha,
                                           bool flipY,
                                           const IntPoint& destTextureOffset,
@@ -701,9 +699,7 @@ bool DrawingBuffer::copyToPlatformTexture(gpu::gles2::GLES2Interface* gl,
     m_gl->Flush();
   }
 
-  // Assume that the destination target is GL_TEXTURE_2D.
-  if (!Extensions3DUtil::canUseCopyTextureCHROMIUM(
-          GL_TEXTURE_2D, internalFormat, destType, level))
+  if (!Extensions3DUtil::canUseCopyTextureCHROMIUM(textureTarget))
     return false;
 
   // Contexts may be in a different share group. We must transfer the texture
@@ -742,7 +738,7 @@ bool DrawingBuffer::copyToPlatformTexture(gpu::gles2::GLES2Interface* gl,
     unpackPremultiplyAlphaNeeded = GL_TRUE;
 
   gl->CopySubTextureCHROMIUM(
-      sourceTexture, 0, GL_TEXTURE_2D, texture, 0, destTextureOffset.x(),
+      sourceTexture, 0, textureTarget, texture, 0, destTextureOffset.x(),
       destTextureOffset.y(), sourceSubRectangle.x(), sourceSubRectangle.y(),
       sourceSubRectangle.width(), sourceSubRectangle.height(), flipY,
       unpackPremultiplyAlphaNeeded, unpackUnpremultiplyAlphaNeeded);