Fix the display not updating after a call to eglSwapInterval.
Fix the display not updating after a call to eglSwapInterval.

This could happen because we reset the dirty swap interval flag
before we called makeCurrent.

BUG=angle:481

Change-Id: I15750db8908eb379d89b2b20104dac87c1399987
Reviewed-on: https://chromium-review.googlesource.com/178520
Reviewed-by: Shannon Woods <0f3694938fd5703bd548127ee497e4d604509bef@chromium.org>
Commit-Queue: Shannon Woods <0f3694938fd5703bd548127ee497e4d604509bef@chromium.org>
Tested-by: Shannon Woods <0f3694938fd5703bd548127ee497e4d604509bef@chromium.org>
Reviewed-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@chromium.org>
Commit-Queue: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@chromium.org>
Tested-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@chromium.org>

nandhanurrevanth/angle,mikolalysenko/angle,mrobinson/rust-angle,mikolalysenko/angle,mrobinson/rust-angle,android-ia/platform_external_chromium_org_third_party_angle,mybios/angle,mrobinson/rust-angle,ppy/angle,crezefire/angle,larsbergstrom/angle,ghostoy/angle,ecoal95/angle,android-ia/platform_external_chromium_org_third_party_angle,ecoal95/angle,mlfarrell/angle,mrobinson/rust-angle,bsergean/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,mybios/angle,mlfarrell/angle,vvuk/angle,MSOpenTech/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,vvuk/angle,mlfarrell/angle,larsbergstrom/angle,mikolalysenko/angle,ppy/angle,domokit/waterfall,MIPS/external-chromium_org-third_party-angle,MSOpenTech/angle,MIPS/external-chromium_org-third_party-angle,csa7mdm/angle,ecoal95/angle,mikolalysenko/angle,mybios/angle,ppy/angle,jgcaaprom/android_external_chromium_org_third_party_angle,ghostoy/angle,xin3liang/platform_external_chromium_org_third_party_angle,larsbergstrom/angle,MSOpenTech/angle,MIPS/external-chromium_org-third_party-angle,vvuk/angle,jgcaaprom/android_external_chromium_org_third_party_angle,MSOpenTech/angle,domokit/waterfall,xin3liang/platform_external_chromium_org_third_party_angle,nandhanurrevanth/angle,mlfarrell/angle,bsergean/angle,mybios/angle,jgcaaprom/android_external_chromium_org_third_party_angle,xin3liang/platform_external_chromium_org_third_party_angle,ghostoy/angle,nandhanurrevanth/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,nandhanurrevanth/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,ecoal95/angle,csa7mdm/angle,bsergean/angle,mrobinson/rust-angle,larsbergstrom/angle,csa7mdm/angle,bsergean/angle,ppy/angle,xin3liang/platform_external_chromium_org_third_party_angle,jgcaaprom/android_external_chromium_org_third_party_angle,android-ia/platform_external_chromium_org_third_party_angle,crezefire/angle,ghostoy/angle,csa7mdm/angle,crezefire/angle,vvuk/angle,android-ia/platform_external_chromium_org_third_party_angle,ecoal95/angle,MIPS/external-chromium_org-third_party-angle,crezefire/angle