Update ANGLE

Update ANGLE
https://bugs.webkit.org/show_bug.cgi?id=164101

Reviewed by Darin Adler.

Source/ThirdParty/ANGLE:

Updated to f01731530e7f754e5ebaf32d00f3e23b62376424
Differences between upstream ANGLE and WebKit's copy of ANGLE are in changes.diff

Source/WebCore:

ShCheckVariablesWithinPackingLimits has changed signatures from taking a ShVariableInfo* and length
to taking a std::vector<sh::ShaderVariable> which requires more information about the shader variables
than we kept in GraphicsContext3D::SymbolInfo.  I removed the SymbolInfo class because it was redundant
with ANGLE's sh::ShaderVariable and now unused.

Covered by existing WebGL tests.

* CMakeLists.txt:
* PlatformMac.cmake:
* PlatformWin.cmake:
* platform/graphics/ANGLEWebKitBridge.cpp:
(WebCore::appendSymbol):
(WebCore::getStructInfo):
(WebCore::getSymbolInfo):
(WebCore::ANGLEWebKitBridge::compileShaderSource):
* platform/graphics/ANGLEWebKitBridge.h:
(WebCore::ANGLEShaderSymbol::isSampler): Deleted.
* platform/graphics/GraphicsContext3D.h:
(WebCore::GraphicsContext3D::SymbolInfo::SymbolInfo): Deleted.
(WebCore::GraphicsContext3D::SymbolInfo::operator==): Deleted.
* platform/graphics/opengl/Extensions3DOpenGLCommon.cpp:
(WebCore::Extensions3DOpenGLCommon::getTranslatedShaderSourceANGLE):
* platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp:
(WebCore::GraphicsContext3D::checkVaryingsPacking):
(WebCore::GraphicsContext3D::precisionsMatch):
(WebCore::GraphicsContext3D::mappedSymbolName):
(WebCore::GraphicsContext3D::originalSymbolName):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@208036 268f45cc-cd09-0410-ab3c-d52691b4dbfc