Use size_t for strlen() return value

src/gpu/gl/egl/SkCreatePlatformGLContext_egl.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gl/SkGLContext.h"
 
 #include <GLES2/gl2.h>
@@ skipping 259 matching lines @@
     if (!eglSwapBuffers(fDisplay, fSurface)) {
         SkDebugf("Could not complete eglSwapBuffers.\n");
     }
 }
 
 GrGLFuncPtr EGLGLContext::onPlatformGetProcAddress(const char* procName) const {
     return eglGetProcAddress(procName);
 }
 
 static bool supports_egl_extension(EGLDisplay display, const char* extension) {
-    int extensionLength = strlen(extension);
+    size_t extensionLength = strlen(extension);
     const char* extensionsStr = eglQueryString(display, EGL_EXTENSIONS);
     while (const char* match = strstr(extensionsStr, extension)) {
         // Ensure the string we found is its own extension, not a substring of a larger extension
         // (e.g. GL_ARB_occlusion_query / GL_ARB_occlusion_query2).
         if ((match == extensionsStr || match[-1] == ' ') &&
             (match[extensionLength] == ' ' || match[extensionLength] == '\0')) {
             return true;
         }
         extensionsStr = match + extensionLength;
     }
@@ skipping 28 matching lines @@
 
 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI) {
     EGLGLContext* ctx = new EGLGLContext(forcedGpuAPI);
     if (!ctx->isValid()) {
         delete ctx;
         return nullptr;
     }
     return ctx;
 }