Support GLSL es 3.00

src/gpu/gl/GrGLContext.cpp

Index: src/gpu/gl/GrGLContext.cpp
diff --git a/src/gpu/gl/GrGLContext.cpp b/src/gpu/gl/GrGLContext.cpp
index 537363493f87b9b62f19ba28c7f51e4cbc2fd196..fc8b195fd37858d48ac27182a75dd818a10bdb3d 100644
--- a/src/gpu/gl/GrGLContext.cpp
+++ b/src/gpu/gl/GrGLContext.cpp
@@ -47,6 +47,16 @@ bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
 
             fVendor = GrGLGetVendor(interface);
 
+            /*
+             * Qualcomm drivers have a horrendous bug with some drivers. Though they claim to
+             * support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
+             * #version 100, and will fail to compile with #version 300 es.  In the long term, we
+             * need to lock this down to a specific driver version.
+             */
+            if (kQualcomm_GrGLVendor == fVendor) {
+                fGLSLGeneration = k110_GrGLSLGeneration;
+            }
+
             fRenderer = GrGLGetRendererFromString(renderer);
 
             fIsMesa = GrGLIsMesaFromVersionString(ver);