Fix Renderer11 signed/unsigned warning in 32-bit.
Fix Renderer11 signed/unsigned warning in 32-bit.

Change-Id: I1e11f54b0ae245cdd7e090ab0748821738ad6314
Reviewed-on: https://chromium-review.googlesource.com/218761
Reviewed-by: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>
Tested-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

jgcaaprom/android_external_chromium_org_third_party_angle,mlfarrell/angle,domokit/waterfall,crezefire/angle,android-ia/platform_external_chromium_org_third_party_angle,ppy/angle,MIPS/external-chromium_org-third_party-angle,mybios/angle,ecoal95/angle,domokit/waterfall,mybios/angle,MIPS/external-chromium_org-third_party-angle,mlfarrell/angle,mlfarrell/angle,larsbergstrom/angle,mrobinson/rust-angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,mybios/angle,crezefire/angle,ppy/angle,android-ia/platform_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,bsergean/angle,mikolalysenko/angle,ecoal95/angle,ghostoy/angle,mrobinson/rust-angle,bsergean/angle,bsergean/angle,crezefire/angle,vvuk/angle,ecoal95/angle,mrobinson/rust-angle,ecoal95/angle,MSOpenTech/angle,vvuk/angle,mikolalysenko/angle,android-ia/platform_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,nandhanurrevanth/angle,mybios/angle,ppy/angle,mrobinson/rust-angle,android-ia/platform_external_chromium_org_third_party_angle,mlfarrell/angle,ecoal95/angle,csa7mdm/angle,jgcaaprom/android_external_chromium_org_third_party_angle,nandhanurrevanth/angle,MSOpenTech/angle,csa7mdm/angle,jgcaaprom/android_external_chromium_org_third_party_angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,ppy/angle,MSOpenTech/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,ghostoy/angle,larsbergstrom/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,larsbergstrom/angle,mikolalysenko/angle,csa7mdm/angle,mikolalysenko/angle,MSOpenTech/angle,jgcaaprom/android_external_chromium_org_third_party_angle,nandhanurrevanth/angle,vvuk/angle,larsbergstrom/angle,nandhanurrevanth/angle,vvuk/angle,mrobinson/rust-angle,crezefire/angle,ghostoy/angle,ghostoy/angle,bsergean/angle,csa7mdm/angle